Question

Part A) A 1.37 mol sample of Xe gas is confined in a 32.7 liter container at 18.1 °C.

If the temperature of the gas sample is raised to 41.5 °C holding the volume constant, the average kinetic energy will

remain the same

decrease

not enough information to answer the question

increase

Part B) A 1.24 mol sample of O₂ gas is confined in a 29.2 liter container at 13.5 °C.

If the temperature of the gas sample is lowered to -8.40 °C holding the volume constant, the force per molecule-wall collision will

increase

not enough information to answer the question

remain the same

decrease

Part C) A 0.913 mol sample of CO₂ gas is confined in a 21.8 liter container at 18.6 °C.

If the temperature of the gas sample is decreased to 1.00 °C, holding the volume constant, the pressure will decrease because:

Choose all that apply.

With lower average speeds, on average the molecules hit the walls of the container with less force.

With higher average speeds, the molecules hit the walls of the container more often.

At lower temperatures molecules have lower average speeds.

As the number of molecule-wall collisions increases, the force per collision decreases.

None of the Above

Answer 1

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