Problem: The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy.What amount of energy (in kilocalories) would be released for the combustion of 0.560 oz (ounces) of methane?

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This problem is related to unit conversion. We need these conversion factors to solve this problem.


1 oz = 28.35 g

1 cal = 4.184 J

1 kJ = 103 J

1 kcal = 103 cal


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Problem Details
The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy.


What amount of energy (in kilocalories) would be released for the combustion of 0.560 oz (ounces) of methane?