The specific heat of iron is 0.4494 j/g°C. how much heat energy (kj) is transferred when a 24.7 kg iron ingot is cooled from 880°C to 13°C?

Question

Laney Miller

Chemistry

2 November, 09:49

The specific heat of iron is 0.4494 j/g°C. how much heat energy (kj) is transferred when a 24.7 kg iron ingot is cooled from 880°C to 13°C?

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Answers (1)

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Renee Cardenas · Answer 1

Answer is: 9623.85 kJ of heat is transferred from iron ingot.

m (Fe) = 24.7 kg · 1000 g/kg = 24700 g; mass of iron ingot.

C = 0.4494 J/g°C; t he specific heat of iron

ΔT = 880°C - 13°C; temperature difference.

ΔT = 867°C.

Q = m·C·ΔT.

Q = 24700 g · 0.4494 J/g°C ·867°C.

Q = 9623856.06 J : 1000J/kJ.

Q = 9623.85 kJ.