5-54 Determine the enthalpy change Ah of nitrogen, in kJ/kg.as it is heated from 600 to 1000 K, using (a) the empirical specific heat equation as a function of temperature

(Table A-2c),(b) the(c) the c, value at room temperature (Table A-2a).Answers: (a) 447.8 kJ/kg, (b) 448.4 kJ/kg, (c) 415.6 kJ/kg value at the average temperature (Table A-2b), and