Question

The temperature to which a gas must be cooled before it can be liquefied by compression is called as___.

• A. Boyle's temperature
• B. Critical temperature
• C. Liquefaction temperature
• D. Inversion temperature

Answer 1

The correct option is B

Critical temperature

Critical temperature is the highest temperature at which a gas starts to liquefy. The temperature to which a gas must be cooled before it can be liquefied by compression is called as critical temperature.