What unit of temperature should be used when applying the ideal gas law?

A.

Fahrenheit (°F)

B.

Kelvin (K)

C.

Rankine (°R)

D.

Celsius (°C)

Correct answer is B

Temperature must be expressed in Kelvin when using the ideal gas law. The Kelvin scale is an absolute temperature scale, and its zero point (0 K) corresponds to absolute zero, the point at which the kinetic energy of gas particles is minimal.