Question: calculate the heat in kj required to transform 6440 g...
Calculate the heat (in kJ) required to transform 64.40 g of dinitrogen tetraoxide from a solid at a temperature of -9.3 °C to a gas at 47 °C.
Molar mass of dinitrogen tetraoxide, N2O4 = 92.011 g/mol, Melting point = -9.3 °C Boiling point = 21°C.
Enthalpy of fusion = 14.65 kJ/mol
Enthalpy of vaporization = 38.12 kJ/mol
Molar heat capacity of the liquid phase = 142.7 J/mol•K
Molar heat capacity of the gas phase= 77.3 J/mol•K