May 2019 1 143 Report
517. Suatu bahan bakar tak dikenal mempunyai entalpi pembakaran -250 kJ/mol, jika bahan bakar (Mr = 90) dibakar sebanyak 2 gram, maka kalor pembakaran yang dihasilkannya adalah...

A. 2×90/250 kJ
B. 2×250/90 kJ
C. 2×90/2 kJ
D. 250×45/1 kJ
E. 45×1/250 kJ
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