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
Verified Correct Answer: E.
Physical Principles & Numerical Solution
H=\(mc\Delta\theta \Rightarrow 60=0.03\times400\times\Delta\theta\\60= 12\Delta\theta therefore \Delta\theta=60/12 =5K\)
Source: Myschool Past Questions Archive (Record #26295)