Chemistry

Problem

The standard enthalpy of combustion of propane gas at

27^\circ C

-2220\ \text{kJ}\ \text{mol}^{-1}

and the standard enthalpy of vaporisation of

C_3H_8

15\ \text{kJ}\ \text{mol}^{-1}

27^\circ C

. What is the standard internal energy change for combustion of liquid propane? Water is formed during combustion. a.

-2205

kJ b.

-2200

kJ c.

-1100

kJ d.

-6600