October 2018 1 68 Report
1. diketahui delta Hf C2 H4 = -122,2 KJ/mol. Delta H untuk pembentukkan 2 mol C2H4 adalah....

2. Diketahui reaksi : H2O(l) => H2O(g) ; delta H = +44 KJ. Kalor yang diperlukan untuk menguapkan 27 gram air adalah.... (Mr air = 18 gram/mol)



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