Asolid contains n non-interacting nuclei of spin 1. each nucleus can be in any of three quantum states labeled by the quantum number m where m-1,0,1. asume a nucleus in the state m-1 or in the state m 1 has the same energy e, while in the state m-0 is zero. derive an expression for the entropy of the n nuclei and the mean energy of the system.

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.