An ice cube is placed onto a hot pan that is sitting on the counter top as shown below. How will the thermal energy move?

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.