Calculation of the Specific Heat for the First Order Phase Transition in NH₄Br

Abstract

We calculate in this work the specific heat C VI using the predictions of an Ising model for the NH 4 Br crystal (T C = 234 K, P = 0). Our calculated C VI values are in good agreement with the experimentally observed C P data from the literature. This shows that the observed behavior of NH 4 Br can be described adequately in the lattice region under an Ising model studied here.