From a vessel containing a mass m = 100 g of water at a temperature t = 0°C, air is quickly pumped out; At the same time, due to intense evaporation, freezing of unevaporated water occurs. What mass of water can be converted into ice in this way? Specific heat of vaporization at 0°C r = 2.49 MJ/kg; specific heat of melting of ice L = 0.336 MJ/kg. The vessel is considered thermally insulated.

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