May 2019 1 85 Report
516. Diketahui energi ikatan sebagai berikut:

C ≡ C : 839 kj/mol
C - H : 413 kj/mol
H - H : 436 kj/mol
C - C : 348 kj/mol

Besarnya entalpi reaksi:

CH ≡ C - CH3 + 2H - H → CH3 - CH2 - CH3 adalah...

A. -2000 kJ/mol
B. -1652 kJ/mol
C. -826 kJ/mol
D. -348 kJ/mol
E. -289 kJ/mol
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