Fraction dryness measures .9

Q: 1000 cfm of air at 95°F dry bulb, 74°F wet bulb is mixed with 2000 cfm of air at 65°F dry bulb, 54°F…

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Q: The warmer the air, the lower the saturation mixing ratio. , Not Selected the higher its humidity…

A: Given: The warmer the air To find: Correct option

Q: If the sling psychrometer read 34 degree dry bulb temperature & 28 degree wet bulb temperature…

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Q: Air at 90°C having percentage humidity of 5% is cooled to 50°C. What is the dew point of air at…

A: The initial temperature of air is The initial relative humidity is The final temperature is

Q: The change of state from a gas to a solid is called _________ and the change is _______

A: Generally the elements transformation follows as gaseous state to liquid state and then liquid to…

Q: Identify a valid reason some people experience nose bleeding at high elevations. A higher…

A: Here the basic property of pressure comes into the role which is that the pressure decreases as we…

Q: Which of the following statement is correct for Isothermal process? Select one: O a. The value of…

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Q: QUESTION 24 Air is compressed in a compressor through the purely polytropic, purely isothermal, and…

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Q: Select all correct statements below to regarding the specific heats._______   A. cp and cv are…

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Q: Measured indoor conditions of a room are: T db = 22 °C, 50% relative humidity. The local pressure is…

A: Given that, Dry bulb temperature, Tdb=22 °C,Relative humidity, ϕ=50 %,Local pressure, P=1 atm,…

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.