The heat of formation of ethene C 2 H 4 is 50 k... - JAMB Chemistry 2019 Question
The heat of formation of ethene, C\(_2\)H\(_4\) is 50 kJmol\(^{-1}\), and that of ethane, C\(_2\)H\(_6\) is -82kJmol\(^{-1}\). Calculate the heat evolved in the process:
C\(_2\)H\(_4\) + H\(_2\) \(\to\) C\(_2\)H\(_6\)
A
-122kJ
B
-132kJ
C
-88kJ
D
-60kJ
correct option: b
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