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What is the amount of heat required to raise the temperature of 5 kg of iron from 30°C to 130°C? Specific heat capacity of iron = 483 Jkg-1C-1. -

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Question

What is the amount of heat required to raise the temperature of 5 kg of iron from 30°C to 130°C? Specific heat capacity of iron = 483 Jkg-1C-1.

Answer in Brief

Solution

Mass of iron m = 5kg
Initial temperature t1 = 30°C
Final temperature t2 = 130°C
Rise is temperature Δt = (t2 -t1) = 130 – 30 = 100°C
Specific heat capacity of iron c = 483Jkg-1°C-1
Q = m × c × Δt
= 5 × 483 × 100
= 2,41,500J

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