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10. Akhil, on burning 2 kg of cow dung cake, produces 14,000 kJ of heat energy, and 4 kg of firewood produces 80,000 kJ of heat energy.

a) Which fuel has the maximum calorific value?
b) Is the use of cow dung cake judicious? Why?

Sagot :

GinnyAnsweridn

Final answer:

Firewood has a higher calorific value than cow dung cake, making it a more judicious choice for heat energy.


Explanation:

a) Which fuel has the maximum calorific value?

To determine which fuel has the maximum calorific value, we compare the heat energy produced per unit mass for cow dung cake and firewood. Firewood produces 80,000 kJ with 4 kg, leading to 20,000 kJ/kg. Cow dung cake, on the other hand, produces 14,000 kJ with 2 kg, resulting in 7,000 kJ/kg. Therefore, firewood has the maximum calorific value.

b) Is the use of cow dung cake judicious? Why?

Considering the calorific value comparison, firewood provides more heat energy per unit mass than cow dung cake. This suggests that the use of firewood may be more judicious in terms of efficiency and heat output.


Learn more about Calorific value of fuels here:

https://brainly.com/question/35895060


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