Multiple choice

A flask contains argon and chlorine in the ratio of $2:1$ by mass. The temperature of the mixture is $27^0C$ . The ratio of average kinetic energies of two gases per molecule is

  1. $1:1$
  2. $2:1$
  3. $3:1$
  4. $6:1$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Average kinetic energy per molecule depends only on temperature (KE = 3/2 * k * T). Since both gases are at the same temperature, the ratio of their average kinetic energies is 1:1.

AI explanation

The average kinetic energy of a gas molecule is given by the formula (3/2)kT, where k is the Boltzmann constant and T is the absolute temperature. Both argon and chlorine are at the same temperature of 27 degrees Celsius inside the flask. Because the average kinetic energy depends solely on temperature and is independent of the gas mass or identity, the ratio of their kinetic energies is 1:1.