Question

Four gases are described below:

Gas A: 3 liters at 42 °C
Gas B: 9 liters at 12 °C
Gas C: 9 liters at 42 °C
Gas D: 9 liters at 12 °C

Which gases have the same average molecular kinetic energy?

Gas A and Gas B
Gas A and Gas C
Gas B and Gas C
Gas B and Gas D

Answer 1

Gases A, B, and D all have the same average molecular kinetic energy, since they are at 12°C.

Step-by-step explanation:

Answer 2

The answer is C of D