In your own words, answer the following questions: 1. What is the dew-point temperature? 2. How does the air motion in the vicinity of the human body affect human comfort? 3. What is the difference between dry air and atmospheric air? 4. Describe the difference between mass fraction and mole fraction

Q: In an air-water vapor mixture at 30°C, the partial pressure of the water vapor is 1.7 kPa and the…

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Q: If the relative humidity of air is 77 % at 18.0°C, what is the partial pressure of water vapor in…

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Q: Outdoor air at 38°C dry-bulb and 19°C dewpoint temperatures are to be mixed with room air at 26°C…

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Q: Air initially at 101.325 kPa, 30°C db and 40% relative humidity undergoes an adiabatic saturation…

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Q: A 2.07 kg of air at 21.42 C underwent an isobaric process wherein its initial volume of 1.79 m3 was…

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Q: An air conditioning unit supplies cold air to a room at 22°C dry bulb and 70% relative humidity.…

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Q: Moist air initially at standard atmospheric pressure, 15°C db, 70% relative humidity undergoes a…

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Q: Which is the physical property to express deviations of pressure between an ideal mixture and a real…

A: Given question : Which is the physical property to express deviations of pressure between an ideal…

Q: 6 bales of cotton, each weighing 490 lb, were held for conditioning in a humid warehouse kept at a…

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Q: Plot the dew point, specific volume and RH of moist air at a drybulb temperature of 15.2019123751…

A: Given Drybulbe temperature, Td =15.2019oCspecific humidity , ω=0.00734 kg moisture per kg dry

Q: Air at 30 ºC with a dew point of 14ºC enters a textile dryer at a rate of 15.3 m3/min and leaves…

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Q: 8. Moist air undergoes a heating and humidification process at a pressure of 101.325 kPa from an…

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Q: Air flowing at 2 kg / 5 has a dry ball temperature of 46 ° C and a wet bulb temperature of 25 ° C,…

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Q: Calculate the individual masses of liquid and vapor in the container.

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Q: Can you explain how did he come up with the formula and explain the formula

A: Specific heat is the amount of heat required to raise the temperature of the substance by a unit…

Q: (1) For saturated moist air, which relationship regarding temperatures of dry-bulb t, wet-bulb tw,…

A: Solution: Given Data: 3 Multiple choice questions.   To Find: Correct option.

Q: A gas mixture consists of methane (CH4) and carbon dioxide (CO2). The mass fraction of CH4 is 0.45.…

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Q: A 2.01 kg of air at 24.10 C underwent an isometric process wherein its initial pressure of 53.63 kPa…

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Q: Atmospheric air at 40°C and 40% relative humidity is cooled to 20°C at constant pressure. Calculate:…

A: Given data as per question The temperature of air = 40°C  relative humidity =40% considering…

Q: In an air-water vapor mixture at 30°C, the partial pressure of the water vapor is 1.7 kPa and the…

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Q: Moist air initially at 120 °C, 3 bar, and 60% relative humidity is contained in a 4-m³ closed, rigid…

A: Given: Initial temperature of moist air (T1)=120°C or (120+273=393K)Initial pressure of moist air…

Q: A kilogram of wet steam is taken as a sample for study. It has a pressure of 0.805 MPa and an…

A: Given data :- P = 0.805 Mpa h = 2287 KJ/kg

Q: The rate of heat transfer. The mass flow rate of the water" The exit velocity of the air stre

A: Given: The diameter of cooling section is, d=30 cm=0.3 m0.0147. The pressure at the cooling section…

Q: What are the dew point temperature, specific volume, enthalpy and absolute humidity of air at 30°C…

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Q: specific humidity of this air?

A: To find specific humidity of this air

Q: What are the dew point temperature, specific volume, enthalpy and absolute humidity of air at 30°C…

A: following is the answer to the above question- given data- dry-bulb temperature = 30 deg C relative…

Q: diatomic gases, unless otherwise specified. 1. Air, initially at18.7 Kpag and 320 °K, occupies 0.11…

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Q: Hot outdoor air (1) has a dry bulb temperature of 43 °C and a wet bulb temperature of 27.5 °C. This…

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Q: Evaluate the dryness fraction (quality) of steam which has 1.5 kg of water in suspension with 60 kg…

A: quality of steam is a fraction that measures the mass fraction of steam in mixture

Q: I need this question in 1 hour, I will give you a good review......... A saturated mixture of 2 kg…

A: Given data:Initial mass of liquid water: mw = 2 kgInitial mass of steam: ms = 0.7 kgInitial…

Q: What is the importance of supersaturation in precipitation

A: Supersaturation :  supersaturation is the driving force for crystal nucleation and growth and will…

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.