A piece of iron of mass 2.0 kg has a thermal capacity of 966JK−1. Find heat energy needed to warm it by 15∘C
14.490 J
7245 J
14490 J
28980 J
A
14.490 J
B
28980 J
C
7245 J
D
14490 J
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Solution
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Amount of heat energy required = Thermal capacity × (Temperature increase)
=966×(15)=14490J
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