Question

Which of the following conditions is most favourable for converting a gas into a liquid?

• A. High pressure, low temperature
• B. Low pressure, low temperature
• C. Low pressure, high temperature
• D. High pressure, high temperature

Hint:

When studying phase changes, remember that temperature and pressure play critical roles in determining the state of matter.

Answer 1

The Correct Option is A

For a gas to condense into a liquid, high pressure and low temperature are the most favorable conditions. This is because increasing pressure pushes the gas molecules closer together, while reducing temperature reduces their kinetic energy, promoting condensation.
Therefore, the correct answer is "High pressure, low temperature."