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how much heat does the 10 liters gasoline burn completely? What amount of kerosene should we...

how much heat does the 10 liters gasoline burn completely? What amount of kerosene should we replace for gasoline to get the same amount of heat?

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Answer #1

Weight of 10 litre of gasoline = 0.75 X 10=> 7.5 kg [ density = 0.75 kg/l]

energy released by 7.5 kg of gasoline = 7.5 X 45 MJ    [ standard value of energy released = 45 MJ/Kg]

= 337.5 MJ Answer.

For Same energy to release the amount of kerosene required is= 337.5 / 43.1 kg [standard value of energy released =45MJ/Kg

Kerosene.]

weight of kerosene required = 7.8 kg

density of kerosene = 0.8 kg/l

volume of kerosene required is= 7.8 / 0.8 L=> 9.75 L Answer.

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