Chemistry > 2000 > 28
JAMB UTME
0.46g of ethanol when burned raised the temperature of 50g of water by 14.3K. Calculate the heat of combustion of ethanol. [C = 12, O = 16, H = 1, specific heat capacity of water = 4.2 Jg-1K-1]
A.
+3000 kJmol-1
B.
+300 kJmol-1
C.
-300 kJmol-1
D.
-3000 kJmol-1
Answer: C
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