Question

In an experiment $4.5\mathrm{kg}$ of a fuel was completely burnt. The heat produced was measured to be $1,80,000\mathrm{kJ}$. Calculate the calorific value of the fuel(in $\mathrm{kJ}/\mathrm{kg}$)?

Answer 1

Step 1: Given data :-

Heat produced by $4.5\mathrm{kg}$ of fuel$=180000\mathrm{kJ}$

Step 2: Calculating the calorific value of the fuel(in $\mathrm{kJ}/\mathrm{kg}$) :-

The amount of heat generated by the full combustion of $1\mathrm{kg}$ of fuel is known as the calorific value of the fuel.

Heat produced by $4.5\mathrm{kg}$ of fuel$=180000\mathrm{kJ}$

Heat produced by $1\mathrm{kg}$ of fuel$=\frac{180000}{4.5}=40000\mathrm{kJ}/\mathrm{kg}$

So, the calorific value of the given fuel is $40,000\mathrm{kJ}/\mathrm{kg}$.