PDF chapter test TRY NOW

Answer the following question:
 
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
 
Acetone, petrol, perfume etc., existing volatile, evaporate very fast when exposed to larger surfaces. When we put some acetone, petrol, or perfume on our palms, it evaporates. During , particles of the liquid energy from the surface of the palm to compensate for the loss of energy, making the surroundings cool. The acetone, petrol or perfume take this latent heat of from our palm. The palm loses heat and feels cold.