States of Matter - Gas and Liquid
Why does a desert cooler cool better on a hot dry day?
Which of the following statements are false? Rewrite them correctly. Evaporation is the process by which liquid turns into gas.
$$\text{True}$$
Evaporation is the process by which liquid turns into a gaseous or vapor state. When the liquid molecule is gets heated, the molecules start moving and vibrating more freely. If this heat energy is sufficient to overcome the forces of attraction between them, then they escape into the atmosphere as molecules of vapor.
Why does a desert cooler cool better on a hot dry day?
How does the water kept in an earthen pot (matka) become cool during summer?
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
What type of clothes should we wear in summer?
Convert the following temperatures to the Celsius scale. $$(a)$$ $$293K$$ $$(b)$$ $$470K$$
Why does evaporation produce cooling?
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
Explain why in hot summer day water remains cool in earthen pots.
Why water kept in an earthen pot during summers cools on its own?