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3 years ago

13

how many kilojoules of energy are necessary to raise the temperature of 3 kilograms of cast iron from 30 degrees Celsius to 120

degrees Celsius?

1 answer:

Scorpion4ik [409]3 years ago

5 0

Specific heat of cast iron is 0.46 kJ / kg K.

Energy change = 0.46 kJ / kg K * 3 kg * (120 - 30) K = 124.2 kJ

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