The relative humidity is what? A) The amount of water vapor in the air divided by the maximum amount of water vapor the air can hold. B) The mass of water vapor in the air divided by the mass of air. C) The mass of water vapor in the air inside divided by the mass of water vapor in the air outside. D) The amount of water vapor in the air divided by the amount of pollution in the air. O A

The relative humidity is what? A) The amount of water vapor in the air divided by the maximum amount of water vapor the air can hold. B) The mass of water vapor in the air divided by the mass of air. C) The mass of water vapor in the air inside divided by the mass of water vapor in the air outside. D) The amount of water vapor in the air divided by the amount of pollution in the air. O A

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

Chapter31: Gas Heat

Section: Chapter Questions

Problem 5RQ: The specific gravity of natural gas is A. 0.08. B. 1.00. C. 0.42. D. 0.60.

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Last night, the temperature was 82°F, the barometric pressure was 29.8 in, and the relative humidity was 83%. Estimate the following: a) mole fraction of water in the air b) dew point (°C) c) molal humidity d) absolute humidity e) percentage humidity.
a) You have two phases of liquid and vapor (i.e., wet steam) at 250°C in a high-temperature high-pressure vessel, which contains 0.8 grams of vapor and 5 grams of liquid. What is the specific volume of the vapor (ml/g)? b) What is the total volume (mL) of the vessel? c) The vessel temperature was increased from 250°C to 280°C wile keeping the volume from part b the same. What is the mass (grams) of liquid then? 978 Appendix A.III: The Thermodynamic Properties of Water and Steam Saturated Steam: Temperature Table (Continued) Specific Volume Sat. Liquid VL 175 180 185 190 195 Temp (°C) T 200 205 210 215 220 225 230 235 240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 330 340 350 360 370 Press. (MPa) P 0.8920 0.001 121 1.0021 0.001 127 0.001 134 1.1227 1.2544 0.001 141 1.3978 0.001 149 1.5538 0.001 157 1.7230 0.001 164 1.9062 0.001 173 2.104 0.001 181 2.318 0.001 190 2.548 0.001 199 2.795 0.001 209 3.060 0.001 219 3.344 0.001 229 3.648 0.001 240 3.973 0.001 251 4.319…
Temperature in Baguio was 77°F, the barometric pressure was 29.8 in, and the relative humidity was 95%. Answer the following: a) mole fraction of water in the air b) dew point (°C) c) molal humidity d) absolute humidity e) percentage humidity
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Mechanical Engineering. Please help to provide solution. Thanks
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A space at sea level has a dry bulb temperature of 70 °F and 50% RH. Find the following in that space: a) WB temperature, b) Absolute Humidity, c) vapor pressure, d) enthalpy, e) specific volume, and f) dew point.
Q1
Thermodynamics: An air conditioning system operates at a pressure of 1 atm. The system has a heating section and an air-conditioning section that provides saturated water vapor at 105 °C.The air enters the heating section at 15 oC and 60 percent relative humidity with a volume flow of 30 m3 / minute and leaves the humidification section at 25 oC and 50 percent relative humidity. a) Find the temperature and relative humidity of the air when leaving the heater section b)Calculate the heat transfer in the heating section [kJ/min] c)Calculate the water flow rate added in the humidification section [ kg/min] NOTE:Please send the solution manually on paper.
1-A rigid tank having the volume of 5 m contains saturated water vapor-liquid mixture at 0.2 MPa. The volume percentage of the saturated liquid in the mixture is 1 %, initially. The tank is heated until it is filled with saturated vapor. a) What is the initial temperature? b) What is the final pressure and temperature? c) Calculate the amount of heat to be transferred, as kJ
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