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A mass of 3 kg of water at 50oC has been heated to vapour at...

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Physics

A mass of 3 kg of water at 50oC has been heated to vapour at atemperature of 125oC in an oven. The specific heat capacities forwater in the form of liquid (Cw), solid (Cice) and gas (Cv) are4.187 kJ.kg-1.K-1, 2.108 kJ.kg-1.K-1, and 1.996 kJ.kg-1.K-1,respectively. Also, latent heats of fusion and vaporization aregiven as 3.33 x 105 J.kg-1 and 2.22 x 103 J.kg-1, respectively.NB: Number your answers correctly!

(a) What would be the entropy of water in the form of liquid,SL? (5)

(b) Calculate the entropy of the system when it changes itsstate/phase to vapour, Sv. (3)

(c) Compute the total entropy, STotal, of water between50 oC and 125 oC. (5)

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