Multiple Choice
Ethanol ( C2H5OH) melts at -114 °C.The enthalpy of fusion is 5.02 kJ mol-1.The specific heats of solid and liquid ethanol are 0.97 J g-1 °C-1 and 2.3 J g-1 °C-1,respectively.How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -145 °C to liquid ethanol at -60 °C?
A) 6.58
B) 9.96
C) 8.88
D) 3859
E) -13.56
Correct Answer:
Verified
Correct Answer:
Verified
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