One way to determine the quality of saturated steam is to throttle the steam to a low enough pressure that it exists as a superheated vapor. Saturated steam at 500 kPa is throttled to 0.1 MPa, 100 oC. Determine the quality of the steam at 400 kPa side.

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A: The given information in the problem is shown in the following attached image:

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Q: 3kg of Co2 expanded in a stationary piston cylinder through a polytropic process from 30 degree…

A: T1= 30+273= 303K, m=3kgP1=250KPa, P2=100KPan=1.45T2T1= 1002501.45-11.45=228.014KTotal Work, W=…

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.