The nitrogen gas in box A has a greater mass than the nitrogen gas in box B. The nitrogen gas in box A has a greater density than the nitrogen gas in box B. The nitrogen gas in box A has a greater temperature than the nitrogen gas in box B. The nitrogen gas in box A has a greater specific gravity than the nitrogen gas in box B.
I gave my students this multiple choice question: Two boxes, A and B, both contain the same number of nitrogen gas molecules. The gas molecules in box A have twice the average speed of the molecules in box B. Which of the following best describes the nitrogen gas in box A?

Only one answer is correct among these 4 choices:
- The nitrogen gas in box A has a greater mass than the nitrogen gas in box B.
- The nitrogen gas in box A has a greater density than the nitrogen gas in box B.
- The nitrogen gas in box A has a greater temperature than the nitrogen gas in box B.
- The nitrogen gas in box A has a greater specific gravity than the nitrogen gas in box B.

Could you tell me which one is correct?

The nitrogen gas in box A has a greater temperature than the nitrogen gas in box B.