Question

Which of the following is true of evaporation? A. It is considered a cooling process and it raises the average kinetic energy of the liquid because the higher energy molecules turn to vapor. B. It is considered a heating process and it lowers the average kinetic energy of the liquid because the higher energy molecules turn to vapor. C. It is considered a cooling process and it lowers the average kinetic energy of the liquid because the higher energy molecules turn to vapor. D. It is considered a heating process and it lowers the average kinetic energy of the liquid because the lower energy molecules turn to vapor.

Answer 1

Answer:

C

Explanation:

C. It is considered a cooling process and it lowers the average kinetic energy of the liquid because the higher energy molecules turn to vapor.

Moreso, evaporation does not increase the average kinetic energy because it is a surface phenomenon. Also, as molecules excape at a fast moving rate, the left over molecules have a lower kinetic energy and this consequently decreases the temperature of the liquid.

When molecules absorbs heat, the evaporate and this phenomental process provides cooling in the system