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heat of combustion of a substance with initial mass of 100g combusts, final mass of 95g and releasing 2000kj of energy
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4 votes
heat of combustion of a substance with initial mass of 100g combusts, final mass of 95g and releasing 2000kj of energy

User Dianakarenms
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1 Answer

4 votes

Answer:

0.4 kJ/kg

Step-by-step explanation:

The change in mass is 100 g - 95 g = 5 g = 0.005 kg

Energy released = 2000 kJ

eat of combustion = Energy released/change in mass = 2000 kJ/0.005 kg = 0.4 kJ/kg

User Isarandi
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