1. A food chemist conducted an experiment in a bomb calorimeter to determine the energy content, in joules per gram, of a muesli bar. A 3.95 g sample of the muesli bar was combusted in the calorimeter and the temperature of the water rose by 16.7 °C. The calibration factor of the calorimeter was previously determined to be 4780 J °C⁻¹. The energy content of the muesli bar is
A. 3.51 × 10⁵ J g⁻¹
B. 2.02 × 10⁴ J g⁻¹
C. 1.13 × 10³ J g⁻¹
D. 7.25 × 10 J g⁻¹

Solution