An engineer claims to have made an engine delivering 10 kW power with fuel consumption of `1gs^(-1)` . The calorific value of fuel is 2 k cal / g . His claim

What is meant by 'Calorific value of a fuel is 8000 kJ k g^(-1) ?

The fuel having a calorific value of 55 kJ/g is likely to be :

Find the mass of the fuel required to raise the temperature of 2 kg of water in a copper container of mass 1 kg by 88^(@)C . Given calorific value of fuel is 48 MJ kg^(-1) , specific heat capacity of water is 1 cal g^(-1).^(@)C^(-1) and specific heat capacity of copper is 0.095 cal g^(-1).^(@)C^(-1) .

A motor cycle engine delivers a power of 10 kW , by consuming petrol at the rate of 2.4 kg//hour . If the calorific value of petrol is 35.5 MJ//kg , the rate of heat rejection by the exhaust by