Question
Question: A 2kg copper block is heated to 500<sup>0</sup>C and then it is placed on a large block of ice at 0<...
A 2kg copper block is heated to 5000C and then it is placed on a large block of ice at 00C. If the specific heat capacity of copper is 400 J/kg/0C and latent heat of water is 3.5 × 105 J/kg. The amount of ice that can melt is –
A
(7/8) kg
B
(7/5) kg
C
(8/7) kg
D
(5/7) kg
Answer
(8/7) kg
Explanation
Solution
Heat lost by copper = heat gain by ice
2 × 400 × [500 –0] = x × 3.5 × 105
\ x = 78 kg