10 Application of the relation du CvTdT requires which of t

10. Application of the relation du = Cv(T)dT requires which of the following assumption(s)? (Select the best response.)

Hint: The above relation states “Cv” and not “Cv,avg”.

a) Constant volume process

b) Ideal Gas

c) Quasi-equilibrium process

d) Constant specific heats

e) All of the above

Solution

(a) correct-bcoz Cv represent constant volume process

dU = (U/T)v dT + (U/V)t dV

Cv (non ideal) = (U/T)v

A quasi-equilibrium process is a process in which the driving forces that change the state of the
system are infinitesimally small.