Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The universal gas constant (R) is a constant value used in the ideal gas law equation to relate the pressure, volume, temperature, and number of moles of a gas. It has the same value for all gases under ideal conditions.
An equation that describes the behavior of an ideal gas by relating its pressure (P), volume (V), temperature (T), and number of moles (n).
Boyle's Law: A gas law that states that at constant temperature, the volume of a given amount of gas is inversely proportional to its pressure.
Charles's Law: A gas law that states that at constant pressure, the volume of a given amount of gas is directly proportional to its absolute temperature.