Question

What is the Enthalpy change for a 20 Kg mole Nitrogen gas that is heated from 100 K to 200 K at constant pressure. (Cv = 2000 J/(Kg*mole)*(Degree Celsius))

(a) 2*10^6

(b) 4*10^6

(c) 6*10^6

(d) 8*10^6

Answer 1

The correct option is (d) 8*10^6

To explain I would say: H2 – H1 = nCp(T2-T1).