May 2019 1 51 Report
Diketahui energi ikatan rata-rata dari:

N ≡ N 941 kj/mol
H - H 436 kj/mol
N - H 391 kj/mol

Perubahan entalpi yang terjadi pada reaksi:
N2 + 3H2 → 2 NH3 adalah

A. -875 kj/mol
B. -204 kj/mol
C. -97 kj/mol
D. +97 kj/mol
E. +204 kj/mol

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