Question

During evaporation of liquid:
A.The temperature of the liquid falls
B. the temperature of the liquid rises
C. the temperature of the liquid remains unchanged
D. all statements are wrong

Answer 1

Hint Evaporation is the process of turning liquid to vapour. When water is heated, it evaporates. The molecules move and vibrate rapidly and they escape into the atmosphere as molecules of water vapour

Complete answer:
Evaporation is that the process by which water changes from a liquid to a gas or vapor. Evaporation can be considered as a pathway by which water moves from the liquid state back to the water cycle as atmospheric water vapour.
Evaporation may be an important part of the water cycle. They stay within the atmosphere, affecting humidity, or the number of moisture within the air.
The factors on which evaporation depends are:
 1.temperature of the liquid. A cup of warm water will evaporate more quickly than a cup of cold water.
2.exposed area of the liquid.
3.presence or absence of other substances within the liquid.
4.air movement.
5.concentration of the evaporating substance within the air.
Evaporation occurs In the water cycle when sunlight warms the surface of the water. Now, this temperature caused by the sun makes the speed or velocity of the water molecules fast, until they reach a point where they move so fast and escape as a gas. Once evaporated, a molecule of vapor spends about ten days within the air.
If you increase the temperature of the water the speed of evaporation will increase. However, you are doing not need to boil water for it to evaporate. Air can only hold most water vapour.
Evaporation proceeds more quickly at higher temperatures, as kinetic energy increases due to its direct proportionality with temperature. As the molecules moving fast escape out of the system, so the mass as well as the velocity decreases of the system, and the kinetic energy of remaining molecules are less, making the temperature of the liquid to decrease.

Hence, A is the correct option.

Note: There are four main stages within the water cycle. They're evaporation, condensation, precipitation and collection. Evaporation is a very important phenomenon and can be experienced more in the summer season. Evaporation prevents water from heating up too much, in fact it reduces the temperature which helps in the survival of aquatic animals and plants.