A cannot engine extracts heat from water at 0°C and rejects it to room at 24.4°C. The work required by the refrigerator for every 1 kg of water converted into ice (latent heat of ice = 336kj/kg ) is

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30 KJ

336 KJ

11.2 KJ

24.4 KJ

answer is A.

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Detailed Solution

T2 = 273k, T1 = 297.4k w = ? m–1kg Lice = 336000J/kg

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