A piece of metal of mass 50g is cooled from 80oC to 20oC. Calculate the amount of heat lost. (specific heat capacity of the material of metal = 450Jkg-1K-1)
-
A.
4.50 x 103J -
B.
2.25 x 103J -
C.
1.80 x 103J -
D.
1.35 x 103J
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