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A 0.5-m^3 rigid tank contains refrigerant-134a initially at 200 kPa and 40 percent quality. Heat is transferred now to the refrigerant from a source at 35∘C until the pressure rises to 400 kPa. Determine (a) the entropy change of the refrigerant,(b) the entropy change of the heat source, and(c) the total entropy change for this process.

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solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment

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