R (Gas Constant)

Definition

The gas constant (R) is a physical constant that appears in the equation of state for an ideal gas. It relates the energy scale to the temperature scale.

Related terms

Ideal Gas Law:

This law states that the pressure times the volume equals the number of moles times the gas constant times temperature (PV=nRT).

Universal Gas Constant: This is another name for R when it's used in context with ideal gases. It has a specific value depending on what units are being used.

Molar Volume:

The volume occupied by one mole of any gas at standard temperature and pressure (STP).