The heat capacity at constant volume (left(C_{V} ight)) is defined as (a) (C_{V}=left(frac{partial S}{partial T} ight)_{V}) (b)

The heat capacity at constant volume \(\left(C_{V}\right)\) is defined as

(a) \(C_{V}=\left(\frac{\partial S}{\partial T}\right)_{V}\)

(b) \(C_{V}=\left(\frac{\partial Q}{\partial T}\right)_{V}\)

(c) \(C_{V}=\left(\frac{\partial H}{\partial T}\right)_{V}\)

(d) \(C_{V}=\left(\frac{\partial U}{\partial T}\right)_{V}\).