A/ Find the missing properties: P (kpa) 320 u (KJ/kg) 0.5 Phase description Material T('C) X R-134 H2O 200 350

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Q: T(°C) Р, КРа v, m/kg Phase Description 50 7.72 50 14.867 400 Saturated vapor 400 0.88936 250 500 250…

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Q: Q2/ Find the molar volume of acetone at 100 atm and 300 k using the Redlich-Kwong equation of state,…

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A: One mole of Manatomic  gas         V2=3×V1

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A:

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.