Question

The standard enthalpies of formation of H20(l) and CO2(g) are respectively -286kJ mol-1 and -394 kJ mol-1. If the standard heat of combustion of CH4(g) is -891kJ mol-1, then the standard enthalpy of formation of CH4(g) is :
A) -75 kJ mol-1
B) +75 kJ mol-1
C) -211 kJ mol-1
D)+211 kJ mol-1
E) -1571 kJ mol-1​

Answer 1

Answer:

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