A gas is placed inside a very cold box. The gas molecules transfer heat to the walls of the box. Which best describes what happens to the gas as it cools down? (2 points)
The gas molecules slow down, and some change phase to liquid.
The gas molecules speed up due to collisions with the walls.
The gas molecules vibrate around fixed positions.
The gas molecules gain energy from the cold walls of the box.

Question

A gas is placed inside a very cold box. The gas molecules transfer heat to the walls of the box. Which best describes what happens to the gas as it cools down?  (2 points)
	The gas molecules slow down, and some change phase to liquid.
		The gas molecules speed up due to collisions with the walls.
		The gas molecules vibrate around fixed positions.
		The gas molecules gain energy from the cold walls of the box.

ujjwal · Answer

What do you say? You must have made a guess.. or, at least you must know this particular option is incorrect, if you are not sure of the correct one..

anonymous · Answer

I think it might be A, but I'm not sure. These are some problems I found to help me study for my exam and I wanted other people's opinions on the answers to help me.

ujjwal · Answer

You are correct.. Its A. Now, can you say how?

anonymous · Answer

When the molecules slow down, they come together and form a liquid. Also known as condensation.

ujjwal · Answer

They slow down because they transfer their energy to walls of box.

anonymous · Answer

Okay! Thanks! I understand it better now. :)