JEE Advanced 2010 Physics question
A piece of ice (heat capacity = 2100 J and latent heat = J ) of mass m grams is at C at atmospheric pressure. It is given 420 J of heat so that the ice starts melting. Finally when the ice-water mixture is in equilibrium, it is found that 1 gm of ice has melted. Assuming there is no other heat exchange in the process, the value of m is
Answer: 8
Solution
The heat supplied first raises the temperature of the whole ice from C to C and the remainder melts 1 g of ice at C. Heat to warm the ice: $ =
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