In a rigid container full of gas, increasing the surrounding temperature causes the gas pressure to?

In a rigid container full of gas, increasing the surrounding temperature causes the gas pressure to?

• A. Decrease
• B. Increase
• C. Stay the same
• D. Random change

Answer: (B)

When temperature rises in a fixed-volume container, the gas molecules move faster, so they collide with the container walls more often and with greater force. Those more energetic collisions increase the average pressure inside. This is reflected by the equation P = nRT/V: with the amount of gas and the volume fixed, pressure is directly proportional to temperature. In real gases this trend holds broadly, though deviations can appear at very high pressures.

When temperature rises in a fixed-volume container, the gas molecules move faster, so they collide with the container walls more often and with greater force. Those more energetic collisions increase the average pressure inside. This is reflected by the equation P = nRT/V: with the amount of gas and the volume fixed, pressure is directly proportional to temperature. In real gases this trend holds broadly, though deviations can appear at very high pressures.