If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 %% efficient.)

Question

Physics

Elliot Dorsey

25 December, 13:59

If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 %% efficient.)

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Answers (1)

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Hope Gould · Answer 1

As we know that

Q = mc (T2 - T1)

Q = (2.9 kg) x (1000 g/1 kg) x (4.18 J/g*oC) x (100 oC - 24 oC)

Q = 921272 J

so, 921272 J x (1 kJ/1000 J) x (1 g/36 kJ) = 2.6 x 101 g