A solid of mass 0.5kg initially at 50 o C melts at 60 o C.
PHYSICS
WAEC 2010
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: C. 10500J
Explanation
Q = ML + C\(\theta\)
= 0.5 x 1000 + 0.5 x 2000 x 10
= 10500
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *