Physics, asked by vk9605406, 3 months ago

Q18. Calculate the coefficient of performance of a reiligerator working between 0 degree Celsius and 70 degree Celsius ​

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Answered by Anonymous
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The process of deriving large crystals of pure substances from their solutions is known as crystallisation. It is a physical change. Crystals of salt are obtained by the evaporation of sea water. ... This mixture when filtered and allowed to cool produces crystals of copper sulphate.

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