The heat of combustion of gaseous butane is -2658 kJ/mol and the heat of combustion of liquid butane is -2635 kJ/ mol when in both cases, all products are gases.
a.) Write a balanced equation for the combustion of gaseous butane.
b.) How many grams of gaseous butane combust when 1550 kJ of heat are produced?
c.) What is the magnitude and sign of the molar heat of vaporization of butane? Explain your reasoning using Hess's Law. is your sign for the heat of vaporization realistic? Explain.