Question

in an elastic container, the volume of a gas depends on its temperature. as the temperature of the gas increases, its volume decreases increases stays the same

Explanation:

According to Charles's Law, for a given amount of gas at constant pressure (which is the case in an elastic container where pressure can adjust to keep the system in equilibrium), the volume of a gas is directly proportional to its absolute temperature ($V\propto T$). So when temperature increases, volume increases.

Answer:

increases