Question

Read the following statements and identify the incorrect statement.

• A. Volume of one mole of a gas at critical temperature is called molar volume.
• B. Pressure of a gas at critical temperature is called critical pressure.
• C. The critical temperature, pressure and volume are called critical constants.
• D. Critical temperature is the highest temperature at which a gas can exist as liquid, above this temperature it is a gas.

Answer 1

Answer: (A)

Volume of one mole of a gas at critical temperature is called molar volume.

Answer 2

Volume of one mole of a gas at $STP$ is called its molar volume.