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Given the Bond Enthalpies C=C (611), C≡C (837), H-H (436),C-H

Question 34

Multiple Choice

Given the bond enthalpies C=C (611) , C≡C (837) , H-H (436) ,C-H (414) all in kJ/mol, estimate ΔH for the following reaction: C2H2(g) + H2(g) → C2H4(g)


A) -60 kJ
B) -166 kJ
C) -994 kJ
D) +166 kJ
E) 98 kJ

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