Question

Vainei
The calorific value of cow-dung cakes is 6800 kJ/kg. What amount of fuel will be required to
produce 54.400 kJ of heat energy?the calorific value of cow dung cakes is a 6800 kg ​

Answer 1

Answer:

369,920kj/kg

Explanation:

amount of fuel =6800kj/kg /6800kg=1kj. so, amount of fuel =54.400kj*6800kg=369,920kj/kg

Answer 2

Answer:

8kg

Explanation:

6800 kg/kj

heat 54,400 kj

how much fuel is needed ?

1Kg 6800

z Kg 54,400

6800*z = 54,400*1

6800z = 54,400

z = 54400/6800

z = 8kg