A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1]
-
A.
1500J -
B.
10000J -
C.
10500J -
D.
15000J
Correct Answer: Option C
Explanation
Q = ML + C(theta)
= 0.5 x 1000 + 0.5 x 2000 x 10
= 10500