totit1097 totit1097

16-01-2023
Chemistry

contestada

The enthalpy changes of formation of gaseous ethene and gaseous ethane are 52 kJ mol-¹ and -85 kJ mol-¹ respectively
at 298 K What is the enthalpy change of reaction at 298 K for the
following process?
C₂H₂(g) + H₂(g) → C₂H6(g)
A-137 kJ mol-1
B -33 kJ mol-1
C +33 kJ mol-¹
D +137 kJ mol-¹

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