Question

a fuel x is having a calorific value of 40,000 kj/kg how much of fuel x should ve burned to conduct a laboratory experiment that requires 8×10 8 kj of energy​

Answer 1

Given: Weight of fuel burnt = 4.5kg

To find : Calorific value = ?

Formula used : Calorific value =\frac{Amount\ of\ heat\ produced}{Weight\ of\ fuel\ burnt}

Weight of fuel burnt

Amount of heat produced

Solution :

Calorific value = \frac{180000}{4.5}

4.5

180000

∴ Calorific value = 40,000 kJ/kg