Answered: 20. Find the humidity ratio of an air…

20. Find the humidity ratio of an air that has tab = 27 °C and twb = 20 °C with a relative humidity of 55%. (Use PB = 100 KPa) a. 0.0124 lby/lba b. 0.24 lb,/lba c. 0.133 Kg,/Kga d. 0.0133 Kgy/Kga

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 1RQ: The standard design conditions for air-conditioning systems established by the Air-Conditioning,...

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Concept explainers

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.

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solution. (Gas-Vapor Mixtures Properties of atmospheric air)

Gas-Vapor Mixtures (Properties of atmospheric air)
20. Find the humidity ratio of an air that has tab = 27 °C and twb = 20 °C with a
relative humidity of 55%. (Use PB = 100 KPa)
a. 0.0124 lb,/lba
b. 0.24 lby/Iba
c. 0.133 Kg,/Kga
d. 0.0133 Kgy/Kga

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