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A thermally insulated vessel contains
150 g of water at 0°C. Then, the air from the vessel is
pumped out adiabatically. A fraction of water turns into ice
and the rest evaporates at 0°C itself. The mass of
evaporated water will be closest to
(Latent heat of vaporisation of water = 2.10×106 Jkg-¹ and
latent heat of fusion of water = 3.36x10³Jkg-¹)

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