PLEASE HELPP!!! WILL REWARD BRAINLIEST AND TONS OF POINTS Please help me with the calculations. I am very confused.

The data (In order)
1. 100 ml
2. 0.10 M
3. 0.62 g
4. 0.77 g
5. 160 mg
6. 360 ml

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?