The average speed of movement of hydrogen molecules is 1000 m / s. determine the gas temperature.

V = 1000m / s
k = 1.38 * 10 ^ -23 J / K
M = 2 * 10 ^ -3
T-?
The formula for the dependence of the average speed of a molecule and temperature (m0 * V ^ 2) / 2 = 3/2 * k * T. Let us express T = (m0 * V ^ 2) / (3 * k). Let us find the mass of the hydrogen molecule m0 = M / Na, where M is the molar mass of hydrogen we take from the periodic table 2 * 10 ^ -3. Na – Avagadro constant, Na = 6.02 * 10 ^ -23. m0 = M / Na = 2 * 10 ^ -3 / 6.02 * 10 ^ -23 = 3.32 * 10 ^ -27 kg. Substitute the mass of the hydrogen molecule in the formula T = (m0 * V ^ 2) / (3 * k) = (3.32 * 10 ^ -27 * (1000 m / s) ^ 2) / 3 * 1.38 * 10 ^ -23 = 3.32 * 10 ^ -21 / 4.14 * 10 ^ -23 = 80 K