Question

1. a) Calculate the standard enthalpy of formation of liquid benzene (C6H6). Given the enthalpies
of combustion of carbon(s), hydrogen (g) and benzene (l) are -393.5 kJ, -285.83 kJ and -
3267.0 kJ respectively.​

Answer 1

Answer:

Heat of formation of liquid benzene (at standard, constant pressure and 298K; all other data and results, too) is equal to 49,04 kJ·mol–1; while heat of combustion of gaseous acethylene is equal to –1300 kJ·mol–1; heat of formation of liquid water is equal to –285,84kJ·mol–1; and heat of combustion of graphite is equal