Suppose 1.00 kg of water at 39.5° C is placed in contact with 1.00 kg of water at 19.5° C. (A) What is the change in energy (in joules) of the hot water due to the heat transfer when it is placed in contact with the cold water and allowed to reach equilibrium? (B) What is the change in entropy in joules per kelvin due to this heat transfer?

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A: We have to find work done  i.eW=q∆V

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Q: 4(x) =

A: Now here given the values that,a=7.50cm=0.075mProbability 87%=0.87So now we get from normalization…

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A: Coefficient of friction =0.560radius of circle R= 38macceleration due to gravity g=9.8m/s^2

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