Evaporation is one process of vaporization that occurs to liquids as they pass to the gaseous state of matter there are several factors that influence a liquid substance in this transition. Soil evaporation is maximum when the water table is at the surface below about 1m depth, any further drop in the height of the water table leads only to a very slight change in the rate of evaporation. The speed of air that is flowing across water will affect how quickly the water evaporates the three main parameters that control the evaporation rate of a body of water are: the surface area, the temperature, and the partial pressure of water in the air first consider the surface area as a body. The temperature will have the greatest effect on evaporation because if the temperature gradually rises then the water molecules will begin to move more rapidly causing a faster rate of evaporation so the water sitting in front of the lightbulb will evaporate the quickest temperature determines. Evaporation is the conversion of a liquid into vapour, without necessarily reaching the boiling point in this experiment the rate of evaporation is measured and compared under different conditions propanone is highly flammable ensure that there are no sources of ignition nearby pupils could be.
The basic factors that affect the rate of evaporation are the: rate at which heat can be transferred to the liquid, quantity of heat required to evaporate each kg of water. Factors that affect evaporation include the concentration of the evaporating substances in air, temperature, air pressure, the rate of airflow and surface area the heat of the sun facilitates the evaporation process, which is important in the water cycle when the air is saturated with the. Factors affecting the rate of evaporation mouseover the pictures to learn more temperature evaporation and boiling | effect of humidity & temperature on.
If left unchecked, evaporation affects the pool's chemical balance and the integrity of the pumping and filtration systems here are several ways that you can estimate your pool's evaporation rate. This effect will slow the evaporation down quite a a lot because the evaporation rate is proportional to the difference between the vapor pressure and the partial pressure of the substance, and diffusion can only take water away so fast. What factors most affect evaporation you can devise an experiment to test the different factors that affect the evaporation rate of water. This activity is an investigation regarding evaporation and the factors that affect it in this inquiry or guided inquiry (depending on grade level) investigation, students will examine conditions to see what affect these conditions have on evaporation rates.
How does the color of water affect its evaporation rate question my experiment consists of 3 bottles of water i added blue food coloring to one bottle, and red food coloring to another bottle, and the last bottle of water i added nothing. Wind - wind can alter rates of transpiration by removing the boundary layer, that still layer of water vapor hugging the surface of leaves wind increases the movement of water from the leaf surface when it reduces the boundary layer, because the path for water to reach the atmosphere is shorter. Factors affecting evaporation pdf that part of evaporation which enters the atmosphere through plants several factors affect the rate of evaporation from surfaces. Question:i know there are probably a number of factors that can affect the rate of evaporation but is there a general rule of thumb or formula i can use to calculate it here's the environment: freshwater concrete fishpond about 25 feet deep (assume near vertical wa. Chemistry investigatory project rate of evaporation of different liquids senior high school projects to study the effect of air current on the rate of evaporation.
Kaiti, a sixth grade science fair participant and athlete, became interested in evaporation when she learned that the concept helped to keep her and her teammates cool on the basketball court during. Yes the surface tension of water affects the rate of evaporation some of which has been discussed here but also quite significantly by adding another source of convection the surface tension of a liquid is affected by its temperature. Evaporation from an open water surface provides an index of the integrated effect of radiation, air temperature, air humidity and wind on evapotranspiration however, differences in the water and cropped surface produce significant differences in the water loss from an open water surface and the crop. Three major variables control rate of evaporation: the temperature of the liquid, which di- rectly affects the velocity of the water molecules, the surface area of the liquid, which affects how much interchange can occur with the air, and the atmospheric pressure.
Water temperature and evaporation rate the hypothesis was that the temperature of the water would affect the evaporation rate of the water the most and that the. Hubert galan and zafira smith introduction: our testable question for this experiment is what factors affect the rate of evaporation of water this testable question regards the different factors, such as the temperature surrounding the water being evaporation, the temperature of the water being evaporated, the temperature of the air surrounding the water being evaporated, the humidity of the. The rate of evaporation of metals can be estimated if one assumes the evaporating rapid or slow evaporation will each have an effect on the resultant fiber.
This activity is designed so that students are able to explain and demonstrate the process of evaporation they should also discover the variables that affect the rate of evaporation ie surface area, heat, air movement, and water purity. Net evaporation occurs when the rate of evaporation exceeds the rate of condensation a state of saturation exists when these two process rates are equal, at which point the relative humidity of the air is 100 percent.
Evaporation rate microworld this interactive animation allows learners to explore the factors that influence the evaporation rate of water this is an early working version of this microworld lot's of things need improved still, but it really does work now. First, students discuss examples of evaporation and then design and conduct their own test to find out whether heating water has an effect on the rate of evaporation while waiting for their results, students conduct another evaporation activity using single drops of water on 2 paper towels, one of which is heated. Both humidity and wind speed affect the rate of evaporation wind speed the speed at which air flows over the surface of water affects the rate at which the water evaporates.