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Physical Chemistry

Statistical Mechanics problem

1. Given the rotational temperature of HCl is 15.02 K, a) what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K? b) What J level has the highest proportion of particles at the temperature 1900 K? c) What is the energy, E, of rotation at this temperature? d) What is the entr