In one or two sentences, describe a scenario using the combined gas law in which changes occur in pressure and temperature of an enclosed gas but the volume does not change

A gas is trapped in a sealed container and its pressure increases while the temperature is decreased; however, the volume remains constant.

One possible scenario could be if a gas is contained in a flexible, sealed container and is subjected to heating or cooling, resulting in changes in temperature, causing the pressure to increase or decrease while the volume remains constant. This is because the flexible container allows the gas to expand or contract in response to temperature changes, effectively maintaining a constant volume.

In a closed container, if the pressure of the gas is increased while the temperature is also increased, the volume of the gas will remain constant according to the combined gas law (P1V1/T1 = P2V2/T2).