The temperature dependence of the activity coefficient can be expressed as (a) (left(frac{partial ln gamma_{i}}{partial T} ight)_{P}=frac{bar{H}_{i}-H_{i}}{R

The temperature dependence of the activity coefficient can be expressed as

(a) \(\left(\frac{\partial \ln \gamma_{i}}{\partial T}\right)_{P}=\frac{\bar{H}_{i}-H_{i}}{R T^{2}}\)

(b) \(\left(\frac{\partial \ln \gamma_{i}}{\partial T}\right)_{P}=\frac{H_{i}-\bar{H}_{i}}{T^{2}}\)

(c) \(\left(\frac{\partial \ln \gamma_{i}}{\partial T}\right)_{P}=\frac{H_{i}-\bar{H}_{i}}{R T}\)

(d) \(\left(\frac{\partial \ln \gamma_{i}}{\partial T}\right)_{P}=\frac{H_{i}-\bar{H}_{i}}{R T^{2}}\).