The air in a certain room (Patm=1Bar) has a dry bulb temperature of 23°C and a relative humidity of 78% (at 23°C, Psat-0.002810MP3; hy=2543.5kJ/kg; v=.048574m/kg). Show COMPLETE SOLUTION. Determine: a. Degree of Saturation b. Enthalpy in kl/kg and BTU/ c. Humidity ratio in kg/kg and Jb/lb. d. Dew point temperature e. Specific volume of air At 19°C-Psat=0.0021975MPA At 20°C-0.002339MPA

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A: Relative humidityDry bulb temperature

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A: Solution is attached below:

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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.