The temperature of the sun's core is about 1.5x10^7 K. Assuming the core to consist of atomic hydrogen gas and recalling that temperature measures the average kinetic energy of the atoms, I cant seem to see how 2.3 kg of gas effects the Eke=3kT/2equation! The other examples on this website has insufficient/confusing responses.

Compute the following. (a) the thermal energy of 2.3 kg of the gas(Eke = 3kT/2, where k is the Boltzmann constant.) (b) the mass associated with this energy (kg).