Author Question: Why does evaporation cool a liquid? A) The departing gas molecule takes some kinetic energy with ... (Read 94 times)

jman1234 · **on:** Aug 27, 2018

Why does evaporation cool a liquid?

A) The departing gas molecule takes some kinetic energy with it as it leaves the surface.
B) The overall heat decreases because the air cools.
C) The average energy of the system increases because of the increased disorder in the new gas molecules.
D) The gas molecules need to transfer their kinetic energy to the new slower gas molecule.
E) none of the above

Question 2

Which of the following describes the reason for the following application of metals? long wires acting to carry power

A) do not conduct heat well
B) are shiny
C) conduct electricity
D) are strong but can be bent
E) C and D