One way to keep the contents of a garage from becoming too cold on a night when a severe subfreezing temperature is forecast is to put a tub of water subfreezing temperature is forecast is to put a tub of water in the garage. If the mass of the water is 135 kg and its initial temperature is 20^(@)C, (a) how much energy must the water transfer to its surrounding in order to freeze competely and (b) what is the lowest possible temperature of the water and its surrounding until that happens?

One way to keep the contents of a garage from becoming too cold on a n

1.	One way to keep the contents of a garage from becoming too cold on a night when a severe subfreezing temperature is forecast is to put a tub of water subfreezing temperature is forecast is to put a tub of water in the garage. If the mass of the water is 135 kg and its initial temperature is 20^(@)C, (a) how much energy must the water transfer to its surrounding in order to freeze competely and (b) what is the lowest possible temperature of the water and its surrounding until that happens?
Answer» ANSWER :(a) 56 MJ; (b) the lowest TEMPERATURE POSSIBLE is `0^(@)C`

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