35 multiple-choice questions in College Board exam style. Each has four choices and a full explanation of why each option is right or wrong.
Watch your units, especially kelvin vs. Celsius. Gas-law questions hinge on using absolute temperature: convert before plugging into any equation.
On PV-diagram questions, identify the process first. Flat line = isobaric, vertical line = isochoric, curve = isothermal, no heat exchanged = adiabatic. The shape tells you which variable is fixed.
Watch the sign convention on work. Expansion means the gas does positive work on its surroundings; compression means the surroundings do positive work on the gas.
Read the explanations even when you got it right. Each one teaches a small fact that often returns in a different form on the exam.