what are the factors affecting evaporation class 9claudia martin dean martin's daughter

SOME DEFINATIONSSOME DEFINATIONS Evaporation:- conversion of a liquid to a vapour. This process requires heat energy. The huge collection of Questions and Answers for academic studies, CBSE school. Therefore increasing the wind speed increases the rate of evaporation. Found inside – Page 7Factors Affecting Evaporation Following are the factors the affect the evaporation process. ○ Temperature: With the increase in temperature the rate of evaporation increases. On increasing temperature more number of particles get ... Found inside – Page 13059 . Oke , T.R. 1970 . Turbulent transport near the ground in stable conditions . Jour . Appl . Meteol . 9 ... Microclimate factors affecting evaporation and transpiration ; In : Irrigation of Agricultural Lands . Monograph No. 3. For example, 500 mL - 495 mL = 5 mL. Evaporation is the process of a liquid changing into vapor or gas, there are many factors affecting evaporation even beneath its boiling point. It is commonly observed that clothes dry at a fast rate during windy days. By continuing, I agree that I am at least 13 years old and have read and agree to the, RD Sharma Solutions for Class 9 Mathematics, English Grammar (Communicative) Interact In English- Class 9, Class 9 Physics, Chemistry & Biology Tips & Tricks. 2010). 2. Many people got confused between evaporation and boiling as in boiling also liquid changes to a gaseous state. Download a PDF of free latest Sample questions with solutions for Class 9, Chemistry, CBSE-Matter In Our Surroundings . The key factors that affect the rate of evaporation of a . Found inside – Page xix... Density of a Gas 9; Density and the Molar Mass of a Gaseous Substance 9.1; Dalton's Law of Partial Pressures 10; ... Factors Affecting the Rate of Evaporation 19.1; Vapour Pressure of Liquids 20; Factors Affecting Vapour Pressure ... Evaporation is also affected by the atmospheric pressure exerted on the evaporating surface. Divide the volume of liquid that evaporated by the amount of time it took to evaporate. All types of questions are solved for all topics. This is the result of the boundary layer at the evaporation surface decreasing with flow velocity, decreasing the diffusion distance in the stagnant layer.The amount of minerals dissolved in the liquid3.Inter-molecular forcesThe stronger the forces keeping the molecules together in the liquid state, the more energy one must get to escape. Answers of Describe the factors affecting evaporation? What is a evaporation? Vaporization increases with the decrease in humidity. What factors affect the rate of evaporation? Found inside – Page 22659 , Colorado River basin ; Nathan C. Grover , chief hydraulic engineer , Robert Follansbee ... 333–359 , il . large 8 ° Factors affecting evaporation of moisture from soil ( with list of literature cited ) ; by F. S. Harris and J. S. ... Found inside – Page 131( 4994 ) EFFECTS OF TOPOGRAPHIC AND CLIMATIC FACTORS ON FREE - WATER EVAPORATION IN MOUNTAINOUS TERRAIN . ... a series of 9 to 12 nonrecording wells in each of 5 bogs , plus several upland wells in adjacent mineral soil . The key factors that affect the rate of evaporation of a liquid are: Temperature: The greater the temperature of the liquid and its surroundings, the faster the rate of evaporation. The Questions and Factors affecting evaporation. This CBSE notes contains CBSE Key Notes, CBSE Revision Notes, Short Key Notes, images, diagrams of the complete Chapter 1 titled Matter in Our Surroundings of Science taught in class 9. The factors affecting the evaporation are: 1. How does humidity affect the rate of evaporation Class 9? answered Oct 13, 2020 by Saadhvi (54.5k points) selected Oct 13, 2020 by . In the container which as kept outside in the sun, due to high rate of evaporation, the salinity is high. Therefore increasing the surface area increases the rate of evaporation.

ET o expresses the evaporating power of the atmosphere at a specific location and time of the year and does not consider the crop characteristics and soil factors. Temperature. Why does evaporation cool water? The heat energy is being absorbed by solid ice without any rise in temperature. Humidity - High humidity lowers the rate of evaporation. Temperature. Why does evaporation cool water? Describe the factors affecting evaporation? Answers of What is evaporation ? Thus, the body cools when evaporation takes place. What are the factors affecting rate of evaporation Class 9? The amount of water vapours present in air is called humidity. This is characterized by the enthalpy of vaporization.4.PressureEvaporation happens faster if there is less exertion on the surface keeping the molecules from launching themselves.5.Surface areaA substance that has a larger surface area will evaporate faster, as there are more surface molecules per unit of volume that are potentially able to escape.Temperature of the substancethe higher the temperature of the substance the greater the kinetic energy of the molecules at its surface and therefore the faster the rate of their evaporation. Therefore increasing the surface area increases the rate of evaporation. . Class-9 » Science. . NEET 2020-2021 Prepar. The kinetic energy increases and the liquid gets converted to vapor instead. All the questions are taken from intext and Exercises part of NCERT Books for class 9 Science issued for academic session 2021-2022. The factors affecting evaporation are as follows: The wind is a critical factor of evaporation as in the wind, for example, dry the clothes faster, under a fan or when the weather is windy. Class 9 Science Chapter 1 Extra questions contains all the short and long answer questions of 9th with complete explanation. Key Questions. Therefore, mass number = 9 + 10 = 19. Class 9 Science Chapter 1 MCQ Online Test with answers and explanation. The factors affecting the evaporation are: 1. 2. Evaporation The process where a liquid changes into vapor at any temperature below its boiling point is evaporation .Evaporation is a surface phenomenon. The sun (solar energy) drives evaporation of water from oceans, lakes, moisture in the soil, and other sources of water. Found inside – Page 849. What do you understand by rate of Ans. The process by which the molecules of evaporation ? liquid escape from the ... Which factors affects the rate of Ans. The temperature at which the vapour evaporation ? pressure of the liquid ... Science formulas. Answer: Factors That Affect the Evaporation. Class 9 Chemistry Matter In Our Surroundings. The water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools . Factors affecting evaporation. Experiments that proves properties of matter, Change of state of matter due to effect of pressure, Processes involved in change of state of matter, Class 9 Chemistry Matter In Our Surroundings. Class 9 Geography Chapter 6 Properties of Sea Water Additional Important Questions and Answers. Increasing temperature also increases the rate of evaporation because with the rise in temperature more number of particles get enough kinetic energy to convert into vapour state. Evaporation: The process of conversion of a substance from the liquid state to the gaseous state at any temperature below its boiling point is called evaporation or vaporisation. Matter in Our Surroundings Class 9 Notes - Here We have provided summary and revision notes for Class 9 Science Chapter 1. Factor Rate of evaporation 1 Temperature Of The Surroundings / Substance The higher the temperature, the faster the rate of evaporation. Matter in Our Surroundings . As the Surface area increases, the rate of evaporation increases. Factors affecting evaporation. 2. Ex. In this regard, ambient temperature, wind speed, atmospheric pressure, amount of dissolved materials (water quality), and evaporation surface conditions are the most important factors affecting the evaporation rate (Henry et al. Due to the increased heat energy (kinetic energy), there is more rapid movement of the water molecules which helps them to overcome the force of attraction and evaporate. Question-and-answer videos, let's have a look at this question. What factors affect the rate of evaporation? evaporation Digital Kemistry ( Free Chemistry Tutorials & Notes ) 257 followers . (a) diffusion, evaporation, compression of gases(b) evaporation, compression of gases, solubility(c) evaporation, diffusion, expansion of gases(d .

Key Questions.

How surface area affects the rate of evaporation? Hydraulic Research in the United States - Page 131 You can also get complete NCERT solutions and Sample papers. . Found inside – Page 313 , 1986 21.31 9.67 8.39 3.21 Cloud cover evaporation from a class A pan . ... aquifer may decrease the lake response time . was F TM May 9 , 1984 6 Wiles 6 Kilometers Climatological and Hydrological Factors Affecting the Lake Thompson ... This is because with the increase in temperature more number of particles get enough kinetic energy to go into the vapour state.

CBSE Class 9 - Ask The Expert; Answered; explain different factors affecting evaporation. UNIT-II 1) Infiltration: Definition, mechanism, factors affecting Infiltration & Infiltration indices.


2. surface area - the rate of evaporation increase with an increase in surface area. Expert Answer: The rate of evaporation is affected by the following factors: . Factors Affecting the Vapour Pressure Class 9 Chemistry . If the air is saturated with water vapor, the rate of transpiration decreases, and as the air becomes dry, the rate of transpiration .
You can study other questions, MCQs, videos and tests for Class 9 on EduRev and even discuss your questions like Temperature, surface area, humidity, wind speed are all different factors. - Explain. So, naturally with more humidity the evaporation rate decreases. Asked on 17th May, 2021 Which one of the following set of phenomena would increase on raising the temperature? Heat assists evaporation; for example, in summer clothes dry faster than in winter. Drying of clothes take place rapidly in summer than in winter. The surface area affects evaporation because if more area is exposed to air, allowing water molecules acquire more heat energy from the surroundings. 3) Transpiration: Definition, mechanism, factors affecting transpiration, its measurement and control. 3. This increases the rate of evaporation. Found inside – Page 7299 , no . 9 , 277–292 + [ 2 ] p . + [ 1 ] leaf , il . 3 p . of pl . ) EVANS , OTTO LEWIS . PRESIDENT OF UNITED Same ... HARRIS , F. s . , and ROBINSON , J. S. Factors affecting evaporation of moisture from soil CLAIMS COMMITTEE , House . A cup of hot water will evaporate more quickly than a cup of cold water. Xamidea Science for Class 9 - CBSE - Examination 2021-22 - Page 15

3. Surface . When the temperature of a liquid is increased by heating it, more particles of the liquid get enough kinetic energy to go into vapour state. Ask questions, doubts, problems and we will help you. The following factors affect evaporation - 1. What Are The Factors Affecting Evaporation? 5. Surface Area. Evaporation and Factors Affecting It: Videos, Concepts and ... Evaporation → Change of liquid into vapours at any temperature below the boiling point. Temperature - We know that liquids turn into gases on reaching boilin. Temperature: As the temperature increases, the rate of evaporation also increases. Expert Answer: The rate of evaporation is affected by the following factors: . . Found inside – Page 68(ii) Also, in this area there is high water vapour content in the atmosphere due to increased rate of evaporation. Since the density of moist air is ... Mention two factors that affect atmospheric pressure. (Board Paper, NP 20) Ans. The ...

Evaporation → The process of conversion of a substance from the liquid state to the gaseous state at any temperature below its boiling point is called evaporation or vaporisation. These definitiona and formulas of Class 9 Science Chapter 1: Matter in Our Surrounding is developed and witten by our expert teachers. Evaporation and Condensation ,Matter in Our Surroundings - Get topics notes, Online test, Video lectures, Doubts and Solutions for CBSE Class 9 on TopperLearning. A B What are the main energy inputs into a lake? The rate of evaporation increases on increasing temperature of the liquid. Answer (1 of 16): To evaporate, water molecules from the water surface must possess enough energy to overcome the intermolecular attraction forces between neighbouring molecules, allowing them to break free and become a gas. What is a vapor pressure deficit? 1.Concentration of the substance evaporating in the airIf the air already has a high concentration of the substance evaporating, then the given substance will evaporate more slowly.Concentration of other substances in the airIf the air is already saturated with other substances, it can have a lower capacity for the substance evaporating.2.Flow rate of airThis is in part related to the concentration points above. Increases in temparature, wind speed, humidity etc.. A substance that has a larger surface area will evaporate faster, as there are more surface molecules per unit of volume that are potentially able to escape. The huge collection of Questions and Answers for academic studies, CBSE school. Explanation of answers will help you to understand questions in depth. Found inside – Page 6Vapourization is a common term applicable for both evaporation and boiling . Factors affecting evaporation ( i ) Surface area : Increase in surface area increases the rate of evaporation . ( ii ) Temperature : Increase in temperature ... Humidity: The rate of evaporation decreases with an increase in humidity. Pressure: Less pressure implies a greater rate of evaporation.On exerting less pressure, the molecules keep from evaporating themselves. The factor affecting evaporation are :-1. Asked by Kanhaiya | 4th May, 2015, 06:26: PM. This discussion on Describe the factors affecting evaporation? factors affecting Evaporation 1. evaporation 2. How do you calculate evaporation rate? evaporation It is determined by a complex system of factors, such as air temperature, relative humidity, water temperature, moisture content, air void content, size, and structure. Evaporation is prepapred and collected from varius resources to help the students. The rate of evaporation increases with increasing temperature of the liquid. How temperature affects the rate of evaporation, class 9 Science Evaporation can be defined as the process through which a liquid (generally water) is converted into a gas/vapour without being heated to its boiling point. Found inside – Page 1242 3 4 5 6 7 8 9 10 11 The mobility of soil moisture in unsaturated soil is Mean monthly evaporation , in . very slight ... factors affecting evaporation : temperature , solar radiation and wind , and it is of course limited by available ... Solution: Three factors which affect the rate of evaporation of a liquid. This shows that the number of protons is 9 and the number of electrons is also 9. In general terms, evaporation is defined as the process in which the liquid state is converted into gas. It is a well known fact that air can hold water upto a certain amount. soon. Morning Star solutions for ICSE Class 9 Total Geography chapter 15 (Humidity) include all questions with solution and detail explanation. Evaporation from water reservoir surfaces includes an important part of the water share. 4- Wind speed - evaporation increase with increase in wind speed. Wind Velocity. 1. Surface area; Temperature; Humidity and; Wind speed. External factors refer to the environmental factors that affect the rate of transpiration which are as follows: i. Atmospheric Humidity. Many of the high pressure solubility data have been obtained in a more general study of high pressure vapor-liquid equilibrium. The process of evaporation can be explained as follows: Some particles in liquid always have more kinetic energy than the others. What is a vapor pressure deficit? Select the correct option: Question 1. So, even when a liquid is well below its boiling point, some of its particles have enough energy to break the forces of attraction between the particles and escape from the surface of the liquid in the form of vapour . are solved by group of students and teacher of Class 9, which is also the largest student Transpiration - Definition, Types, Significance and Factors Affecting Transpiration. . PRESENTED BY-PRESENTED BY- PRATEEKPRATEEK 2. In such cases a note is included to indicate that additional vapor-liquidequilibrium data are given in the source. 2. 90% of the moisture present in the earth's atmosphere is due to evaporation, while the rest 10% is due to transpiration. Best answer. An increase in surface area increases evaporation. Found inside – Page 32Ans. (i) Two factors that affect the atmospheric pressure of a place are: 1. ... Ans. Poles receive low rainfall because of the following reasons: (i) Most of the water found in poles is in frozen form, which supports least evaporation. Found inside – Page 3718. What are the factors affecting evaporation from crop field and free water body? 9. How you can estimate evaporation from meteorological data? 10. ... Discuss the procedure for setting and measurement with USWB Class A pan. 11. If the amount of water in atmosphere is already high then rate of evaporation will decrease. Learn the concepts of Class 9 Chemistry Matter in Our Surroundings with Videos and Stories. The Questions and So it says to state three factors which affect the rate of evaporation of a liquid that is how fast they are brushed in . Class 9 Science Chapter 1 MCQ with Answers for 2021-22. As stated earlier, heat is known to affect evaporation, just like how the clothes dry faster during summer too. Temperature. Content of water vapour in the atmosphere is known as humidity. Found inside – Page 68(ii) Also, in this area there is high water vapour content in the atmosphere due to increased rate of evaporation. Since the density of moist air is ... Mention two factors that affect atmospheric pressure. (Board Paper, NP 20) Ans. The ... Examples of Evaporation. In this video, we are going to understand what are the factors affecting evaporation.1. If the answer is not available please wait for a while and a community member will probably answer this i.e evaporation takes place at the surface of the liquid. The Questions and Answers of Describe the factors affecting evaporation? But, there is a difference, the very first is boiling of liquid happen at a particular temperature while . Temperature of the substance: On increasing the temperature of the substance, the material heats up and the constituent particles begin moving with greater kinetic energy.This leads to an increase in the rate of evaporation. Found inside – Page 335 indicates that with respect to consistency there is not much to choose between an Australian pan and a Class A pan . 9. FACTORS WHICH AFFECT EVAPORATION FROM PANS Temperature : At a particular place the rate of evaporation is modified ... Found inside – Page 15Discuss the various factors which affect the rate of evaporation. Latent heat of evaporation of two liquids A and B is 100 J/kg and 150 J/kg respectively. Which one can produce more cooling effect and why? Ans. Factors affecting the ... What is evaporation ? Factors Affecting Evaporation by CHUAH BING HUAN . We are well aware of the fact that evaporation is a surface phenomenon. These questions are helpful for school tests as well as terminal exams. Question bank for Class 9. 2. CBSE Class 9 - Ask The Expert; Answered; explain different factors affecting evaporation. Rate of evaporation is always greater over fresh water than over salt water. As the Surface area increases, the rate of evaporation increases. . The only factors affecting ET o are climatic parameters. Humidity of air. The velocity of the wind also affects the rate of evaporation.

community of Class 9. (a) First row: (i) The given atomic number is 9. Only a small quantity of this water is used for metabolic activities and the growth of the plant. Evaporation is an essential part of the water cycle. Therefore decreasing the humidity also increases the rate of evaporation. So, what are the main factors that will affect the evaporation rate of . Evaporation can be defined as the process through which a liquid (generally water) is converted into a gas/vapour without being heated to its boiling point. This discussion on What is evaporation ? Found inside – Page 131( o ) A study of 4 - year ' , data to determine errects of climatic and site factors on snowmelt characteristics in ... 1s being conducted with a specially designed network of 13 Weather Bureau Class A evaporation stations at elevations ... 6 important factors that affect evaporation are : 1.

In general terms, evaporation is defined as the process in which the liquid state is converted into gas. is done on EduRev Study Group by Class 9 Students. (iii) nature of the liquid. Since 70% of the earth's surface is covered by oceans, they are the main source of water in the atmosphere and . temperature of the liquid. The water vapor because of evaporation rises up in air and cumulates in the form of cloud, which makes the rain. Temperature: As the temperature increases, the rate of evaporation also increases. The evaporation rate is an important factor that influences the effect of evaporative cooling of permeable pavements. Answer: Evaporation is the process in which a liquid state of matter (water) is converted into a gaseous state of matter (vapour).

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