Thermodynamics and P-V Diagrams

When a gas undergoes rapid compression in an adiabatic process, what is the primary effect on its internal energy?

• It decreases because heat is quickly lost to the surroundings.

• It remains constant because no heat is exchanged.

• It increases due to work being done on the gas.

• It decreases as the gas expands.

In the First Law of Thermodynamics, ΔU = Q + W, what does the term 'W' typically represent?

• Work done by the system on its surroundings.

• Work done on the system by its surroundings.

• Heat transferred from the system.

• The change in the system's volume.

On a pressure-volume (P-V) diagram, which type of thermodynamic process is represented by a vertical line?

• Isobaric

• Isothermal

• Isovolumetric

• Adiabatic

What is the net work done on or by a gas during an isovolumetric process?

• Positive, as pressure increases.

• Negative, as pressure decreases.

• Zero, as there is no change in volume.

• Equal to the heat transferred.