A) 7/8 kg
B) 7/5 kg
C) 8/7 kg
D) 5/7 kg
Correct Answer: C
Solution :
Let \[x\,kg\]of ice melt heat lost by copper =f heat gained by ice \[2\times 400\times (500-0)=x\times 3.5\times {{10}^{5}}\] \[x=\frac{2\times 400\times 500}{3.5\times {{10}^{5}}}=\frac{8}{7}\,kg\]You need to login to perform this action.
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