A sample of n-octane (1.14 g) was completely burnt in excess of oxygen in a bomb calorimeter, whose heat capacity is 5 kJ K–1. As a result of combustion reaction, the temperature of the calorimeter is

Question

A sample of n-octane (1.14 g) was completely burnt in excess of oxygen in a bomb calorimeter, whose heat capacity is 5 kJ K–1. As a result of combustion reaction, the temperature of the calorimeter is increased by 5 K. The magnitude of the heat of combustion of octane at constant volume is ___________kJ mol–1 (nearest integer).

Prashant Kotian · Accepted Answer

Correct answer: .. Bomb calorimeter works on constant volume so heat realised must be equal to U sO qV = 2500 kJ/mole

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