Multiple Choice
Calculate the internal energy change, ΔrU, for the combustion of 9.467 g of L-alanine (C3H7NO2, molar mass = 89.094 g mol-1) if the combustion inside a bomb calorimeter, Ccal = 7.83 kJ °C-1, causes a temperature change from 24.7 °C to 46.1 °C.
A) -1.58 × 103 kJ mol-1
B) 6.14 × 103 kJ mol-1
C) -3.48 × 103 kJ mol-1
D) -8.60 × 102 kJ mol-1
E) 3.84 × 103 kJ mol-1
Correct Answer:
Verified
Correct Answer:
Verified
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