In a bomb calorimeter experiment, a sample with a mass of 2 grams is combusted, resulting in a temperature increase of 15°C. If the heat capacity of the calorimeter is known to be 4.5 kJ/°C, what is the total heat released during the combustion process, assuming thermal equilibrium is reached?

The heat capacity tells how much heat the calorimeter takes to rise one degree Celsius. Other options are incorrect because Many students think the temperature rise should be multiplied by the calorimeter’s capacity, giving 67.5 kJ, then they mis‑read that as 30 kJ; Some students assume the heat capacity is per gram, so they divide 67.5 kJ by 2 grams, arriving at 60 kJ.