An ideal gas is at a temperature of 320 K.What is the average translational kinetic energy of one of its molecules? A)9.2 x 10^-24 J B)1.4 x 10^-23 J C)2.1 x 10^-23 J D)cannot tell without knowing the molar mass E)cannot tell without knowing whether the gas is monatomic or diatomic

Question

Quizplus · Accepted Answer

The average translational kinetic energy of a molecule in an ideal gas is given by (3/2)kT, where k is the Boltzmann constant (1.38 x 10^-23 J/K) and T is the temperature in Kelvin. Substituting the given temperature, the energy is approximately 2.1 x 10^-23 J.

An Ideal Gas Is at a Temperature of 320 K