October 2019 1 25 Report
22. Diketahui energi ikatan rata-rata sebagai berikut:

C=C = 614 kJ/mol

H-H = 436 kJ/mol

C-C = 348 kJ/mol

C-H = 412 kJ/mol

Besarnya perubahan entalpi reaksi dari:

C2H4(g) + H2(g) -> C2H6(g) adalah...

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