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sergiy2304 [10]
3 years ago
10

A car engine produces 604 kJ of mechanical energy from fuel capable of producing 2416 kJ of energy. The efficiency of the engine

is
Chemistry
1 answer:
Anna71 [15]3 years ago
6 0
I think it’s 40% but I’m not sure
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Which of these is the best evidence that a chemical reactions occurs when coal burns?
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 <span>Get into moles first. .0590 grams over 540.8 grams per mole = 1.09 x l0^-4 moles 

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