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

WAEC 1997

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

A. 0.2K
B. 0.8K
C. 2K
D. 4.5K
E. 5K

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

Correct Answer: Option E

Explanation

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