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NEET UG PHYSICS MCQ: THERMODYNAMICS
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252 micro coulombs of charge is transferred between two points having a potential difference of 109 volt during an electric discharge. What mass of ice would it melt if all the energy released could be used for the above purpose? (take mechanical equivalent of heat as 4.2 joule/calorie and latent heat of fusion of ice is 80 cal/gm)
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Correct option: B
0.75 kg
Option B (0.75 kg) is correct because the energy released during the electric discharge is used to melt the ice, and the mass of ice melted can be calculated using the latent heat of fusion.
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