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March 30, 2017

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2 liters of water at 80.c is found into a plastic bucket containing 10 liters of water at 20.c what is the final temperature of water ( density of water 1kg/litre) (neglect the heat gained by bucket and specific heat capacity of water = 1cal/gm.c ?

  • science - ,

    The sum of the heats gained is zero.

    2*(cw)(Tf-80)+10*cw(Tf-20)=0

    Now, with the magic of algebra, solve for Tf. Notice that cw, the specific heat of water divides out, and it does not enter the calculation

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