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1.0kg of water is heated from 0?C to 100?C. Estimate the change in entropy of the...

1.0kg of water is heated from 0?C to 100?C. Estimate the change in entropy of the water.

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Answer #1

Heat absorbed by water in temperature rise, dQ=mC dT

Change in entropy=dQ/T

                                =mC dT/T

                                =mC ln(T2/T1)

Here, m=1000g

C=4.184 J/g.?

dS=1000*4.184*ln[(273+100)/273]

=1305.8 J/K

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