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Question: calculate the heat in kj required to transform 6440 g...

Question details

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.

Information given:

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

Please help.

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