Einstein model, small correction

File in which the problem appears

Einstein model

Problematic sentence

Substituting n_B into, the expression for the oscillator energy, obtain the expectation value of the energy stored in the oscillator at temperature T—the thermal energy:

Correct version

Substituting n_B into the expression for the oscillator energy, we obtain the expectation value of the energy stored in the oscillator at temperature T—the thermal energy: