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A piece of copper of mass 30g loses 60J of heat energy. If the specific heat capacity ...

A piece of copper of mass 30g loses 60J of heat energy. If the specific heat capacity of copper is 400J\(kg^{-1}K^{-1}\), Calculate the change in the temperature of the copper
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  • A 0.2K
  • B 0.8K
  • C 2K
  • D 4.5K
  • E 5K
Correct Answer: Option E
Explanation:
H=\(mc\Delta\theta \Rightarrow 60=0.03\times400\times\Delta\theta\\60= 12\Delta\theta therefore \Delta\theta=60/12 =5K\)

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