Answer: low temperature and high pressure.
- A high temperature and low pressure
- B low temperature and high pressure
- C high temperature and high pressure
- D standard temperature and pressure
Correct answer: B. low temperature and high pressure
Explanation: At low temperature and high pressure, molecules are close together and attractions and molecular volume become significant.
Boyle's law: at constant temperature the pressure of a fixed mass of gas is inversely proportional to its volume (P ∝ 1/V), so the P–V plot is a hyperbola — halving the volume doubles the pressure. Image: Reginaprice2013, CC BY-SA 3.0, via Wikimedia Commons.
Concept context
Discover why gases expand to fill any container while liquids flow and solids hold their shape. Master the gas laws, the ideal gas equation, and the reasons real gases deviate from ideal behavior.