A 1.250 g sample of octane `(C_(8)H_(18))` is burned in excess of oxygen in a bomb calorimeter. The temperatre of the calorimeter rises from 294.05 K to 300.78K. If heat capacity of the calorimeter is 8.93kJ`//`K, find the heat transferred to the calorimeter. Also calculate the enthalpy combustion of the sample of octane.

Explanation

`q=C_(V)DeltaT, C_(V)=8.93 kJ K^(-1)`
(`C_(v)` = quantity of heat 'q' required to raise the temperature, of calorimeter from `294.05 K` to `300.78)`
`Deltat=300.78-294.05=6.73 K`
Heat transferred to calorimeter, `q=8.93xx6.73=60.1 kJ`