242 SOLUTIONS
b) The latent heat if the transition occurs at a constant temperature,
is given by If the transition is from superconducting to
normal, then
So, if we have a transition from the superconducting to normal states, then
heat is absorbed.
c) The specific heat is defined as Here we disregard any
volume and pressure changes due to the transition. Hence, from equation
(S.4.106.6), the specific heat per volume discontinuity is
At zero field the transition is of second order and so the specific
heat per unit volume discontinuity at from (S.4.106.8) is