QUESTION (2): A solid of molecules that have accessible energy levels that differ in energy by

\\\\Delta \\\\epsi

. The lower level is threefold degenerate and the upper one is twofold level degenerate. Take the zero energy axis to be the lower energy level. Assume the molecules are not interacting with each other but are coupled to a heat reservoir and can be considered to be a canonical ensemble. (A)Find the partition function for this system.[4 points]\ (B)Calculate the average energy of the system.[2 points]\ (C)Show that as

T->0

the average energy goes to zero.[2 points]\ Solution:

QUESTION (2): A solid of molecules that have accessible energy levels that differ in energy by . The lower level is threefold degenerate and the upper one is twofold level degenerate. Take the zero energy axis to be the lower energy level. Assume the molecules are not interacting with each other but are coupled to a heat reservoir and can be considered to be a canonical ensemble. (A)Find the partition function for this system. [4 points] (B)Calculate the average energy of the system.[2 points] (C)Show that as T0 the average energy goes to zero.[2 points] Solution