Question

Critical pressure is the minimum pressure required to liquefy a gas.
If this is true enter 1, else enter 0.

Answer 1

The critical temperature of a gas is the temperature at or above which no amount of pressure, however great, will cause the gas to liquefy. The minimum pressure required to liquefy the gas at the critical temperature is called the critical pressure. If the temperature is above critical temperature, gas cannot be liquefied at any pressure.