What is the temperature if krypton has a root mean square velocity of 348 m s^-1?

Question

Quizplus · Accepted Answer

We can use the equation for root mean square velocity:

v rms = [(3kT)/m]^1/2

where v rms is the root mean square velocity, k is Boltzmann's constant, T is temperature, and m is the molar mass of the gas.

Solving for T:

T = (m * v rms^2)/(3k)

The molar mass of krypton is approximately 84 g/mol.

T = (84 g/mol * (348 m/s)^2)/(3 * 1.38 x 10^-23 J/K)

T = 134°C

Therefore, the answer is choice C.

What Is the Temperature If Krypton Has a Root Mean