The vapor pressure is the pressure of the vapor phase of a substance when it is in equilibrium with the solid or liquid phase of the substance. The relative humidity is the partial pressure of water vapor in the air divided by the vapor pressure of water at that same temperature, expressed as a percentage. The air is saturated when the humidity is 100%. The vapor pressure of water at a temperature of 20.0 °C is 2340 Pa. If the air temperature is 20.0 °C and the relative humidity is 22.0%, what is the partial pressure of water vapor in the atmosphere (that is, the pressure due to water vapor alone)? Express your answer in pascals. p= Submit Part B m = Π ΑΣΦ Submit Request Answer Under the conditions of part (a), what is the mass of water in a volume of 1.60 m³ of air? (The molar mass of water is 18.0 g/mol Assume that water vapor can be treated as an ideal gas.) Express your answer in grams. IVE ΑΣΦ ? Roquort Ancwor Pa ? Review | Constants g

The vapor pressure is the pressure of the vapor phase of a substance when it is in equilibrium with the solid or liquid phase of the substance. The relative humidity is the partial pressure of water vapor in the air divided by the vapor pressure of water at that same temperature, expressed as a percentage. The air is saturated when the humidity is 100%. The vapor pressure of water at a temperature of 20.0 °C is 2340 Pa. If the air temperature is 20.0 °C and the relative humidity is 22.0%, what is the partial pressure of water vapor in the atmosphere (that is, the pressure due to water vapor alone)? Express your answer in pascals. p= Submit Part B m = Π ΑΣΦ Submit Request Answer Under the conditions of part (a), what is the mass of water in a volume of 1.60 m³ of air? (The molar mass of water is 18.0 g/mol Assume that water vapor can be treated as an ideal gas.) Express your answer in grams. IVE ΑΣΦ ? Roquort Ancwor Pa ? Review | Constants g

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Relative humidity represents .3 the water vapour in the air under low temperature to the water vapour amount in the air under high temperature. the real water vapour amount in the air per the maximum vapour amount that the air could contain. none of these answers. O the water vapour amount in the air per unit mass of the air.
A lecture hall shown in Figure having a volume of 106 ft³ contains air at 80°F, 1 atm, and a humidity ratio of 0.01 lb of water vapor per lb of dry air. Using the appropriate equations, determine. a) the relative humidity. b) the dew point temperature, in °F. c) the mass of water vapor contained in the room, in lb.
I. Graph the following and find the values of the unknown. Consider a room that contains air at 1 atm, 35 C, and 40 percent relative humidity. Using the psychrometric chart, determine (a) the specific humidity, (b) the enthalpy, (c) the wet-bulb temperature, (d) the dew-point temperature, and (e) the specific volume 7 35 C 6 = 40%
What is the maxmium specific humidity of air at -30C is ________________and the maximum specific humdity of air at -10 C is _______________; therefore, the difference in maximum specific humidity between -30C and -10C is _____________. The maximum specific humidity of air at 30 C is ________________ and the maximum specific humidity of air at 10 C is ____________; therefore, the difference in maximum specific humidity between 30C and 10C is ______________.
Moist air at a dry bulb temperature of 22°C has a relative humidity of 60% when the barometric pressure is 101.325 kPa. Determine: the degree of saturation, % b. the dew point temperature, C the specific volume, m³/kg ( a. С.
1. A sample of gas A evaporates over water in a dosed system. What Is the pressure of gas A in kg/m2 if the total pressure Is 780 torr and water vapor pressure Is 1 atm?
2) Determine the dew point of moist air at 80 F (27 C) and 60 percent relative humidity for pressures corresponding to sea level. Please use the psychometric chart to solve the following problems
The temperature of the air-vapor mixture is at 30.5°C and it has a relative humidity of 50% when the barometric pressure is 101.325 kPa. Determine: a) the degree saturation, % b) the enthalpy of the dry air, kJ/kg c) the specific volume, m3/kg
0.29 kg of a certain perfect gas occupies a volume of 0.024 mº at a pressure of 11.5 bar and temperature of 35.5 °C. Given that Ro is 8.314 kJ/kg.mol.K. Determine the molecular weight of the gas.
Indoor air dry bulb temperature and relative humidity are 23 C and 45%, respectively. Determine a) the specific humidity ( d, kg/kg ); b) dew point temperature ( Tdp, C ); c) water vapor mass fraction ( Yv, kg/kg ); d) dry mass fraction ( Ya, kg/kg). Data: (if needed) Atmospheric pressure for all problems B = 100 kPa. Universal gas constant Ro = 8314.472 J/(kg.K) Air ideal gas constant R = 287 J/(kg.K) Atomic weights in kg/kmol: Carbon – 12.0107; Nitrogen – 14.0067; Oxygen – 15.9994 Isentropic exponent: k = 1.67 for monatomic gases; k = 1.40 for diatomic gases; k = 1.29 for polyatomic gases. Wien's displacement constant: b=0.0028977685 m.K. Standard state conditions: P =101325 Pa, T=273.15 K.
1- In a steam boiler with a volume of 1.5 meter cube, has contains 750 kg of saturated water mixture at1 MPa pressure. Determine;a) The temperature of the steam,b) The qualityc) The volume percentage of the saturated steam.
A quantity of moist air of mass 4 kg has a humidity ratio of 0.019 and a relative humidity of 65%. The pressure is 95 kPa. -What is the dry-bulb temperature in °C?-What is the volume of the air sample in m^3?-What is the dew-point temperature in °C?-What is the enthalpy in kJ/kg?