Question

To begin the experiment, a bomb calorimeter is filled with 1.11 g CH4 and an excess
of oxygen. The heat capacity of the calorimeter, including the bomb and the water,
is 4.319 kJ g C⋅° . The initial temperature of the system was 24.85°C, and the final
temperature was 35.65°C.

3. Using the formula ∆H =−M ⋅ C ⋅∆T , calculate the heat of combustion of
1.11 g CH4 .

Answer 1

∆H =−M ⋅ C ⋅∆T

M= 1.11 g CH4
C= 4.319 kJ /g C⋅°
∆T= T final- T initial= 35.65°C - 24.85°C = xxx °C

replace the data in the formula and calculate the ∆H