with the help of a Bomb calorimeter, the lower calorific value of a solid or liquid fuel can be determined, as the

Question

Assertion (A): with the help of a Bomb calorimeter, the lower calorific value of a solid or liquid fuel can be determined, as the water vapour formed is carried away by the exhaust gases.

                                               

Reason (R): The lower calorific value of a fuel is the net value of heat available found by subtracting the latent heat of the water formed and carried away by exhaust gas from the higher calorific value.

1. Both A and R are individually true and R is the correct explanation of A
2. Both A and R are individually true but R is not the correct explanation of A
3. A is true but R is false
4. A is false but R is true