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A piece of ice (heat capacity = 2100 J kg-1 °C-1 and latent heat = 3.36 ×105J kg-1) of mass m grams is at -5°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?

A piece of ice (heat capacity = 2100 J kg-1 °C-1 and latent heat = 3.36 ×105J kg-1) of mass m grams is at -5°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?

Grade:

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

The answer is 8gm

Regards

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