15. The relative humidity of air equals the ratio of the partial pressure of water in the air to ...

Question

Question

15. The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressu

Answer 1

Answer #1

Answen Relate uD- Partial Rressure Ho in Atr Equliium Vabaur Aressme ute oluuw 46.722 m4 46722.7 tt 243. IS ( trorinde this

Answer 2

Similar Homework Help Questions

The relative humidity of air equals the ratio of the partial pressure of water in the...

The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature times 100%. If the relative humidity of the air is 58% and its temperature is 68 oF , how many moles of water are present in a room measuring 12 ft x 10 ft x 8 ft? The vapor pressure of water at 68 oF is 17.54 torr.
1. (relative humidity) The partial pressure of water vapor in air is usually less than the...

1. (relative humidity) The partial pressure of water vapor in air is usually less than the equilibrium vapor pressure (or saturation pressure) at the ambient temperature; this is why a cup of water will spontaneously evaporate. The ratio of the partial pressure of water vapor to the equilibrium vapor pressure (at the same temperature) is called the relative humidity. Saturated air, at 100% relative humidity, would be in equilibrium with a cup of liquid water. The saturation pressure depends strongly...
1) An air-water vapor mixture at 95°F has a relative humidity of 45%. Calculate the partial...

1) An air-water vapor mixture at 95°F has a relative humidity of 45%. Calculate the partial pressure of the water vapor and its dew-point temperature. (Hint: Psychrometric chart is really useful for this.)

1 kg of atmospheric air initially at 30 ºc and 60% relative humidity is cooled slowly,...

1 kg of atmospheric air initially at 30 ºc and 60% relative humidity is cooled slowly, at a constant pressure of 100 kPa, to a final temperature of 5 ºc. a. What is the saturation pressure of water at the initial temperature? b. What is the partial pressure of water vapor (vapor pressure) at the initial condition? c. What is the partial pressure of dry air at the initial condition? d. What is the initial humidity ratio? e. What is...
2- Air at 39.5 °C and humidity ratio of 9 (grams /kg dry air) is humidified...

2- Air at 39.5 °C and humidity ratio of 9 (grams /kg dry air) is humidified adiabatically to 70% relative humidity (sea-level pressure). Liquid water is supplied at 70 °C for humidification (hf = 293 kJ/kg, hg = 2626.1 kJ/kg) Determine: a) The initial wet bulb temperature b) The initial relative humidity c) The initial density d) The final wet bulb temperature e) The final density f) The final dry bulb temperature
Assume all gases in this problem are ideal (a) If the partial pressure of water vapor...

Assume all gases in this problem are ideal (a) If the partial pressure of water vapor is 31.8 torr, what is the dew point (in °C)? (760 torr- 1 atm 101,325 Pa) oC (b) On a warm day when the air temperature is 25°C and the dew point is 18°C, what are the partial pressure of the water in the air (in Pa) and the relative humidity? partial pressure R.H. Pa

absolute humidity at atmospheric pressure at 27 C is 0.011 kg water / dry air determine:...

absolute humidity at atmospheric pressure at 27 C is 0.011 kg water / dry air determine: a. water vapor partial pressure (kPa) b. relative humidity (%) c. dew point temperature (C)
On a particular summer day, the temperature is 30.0°C and the relative humidity is 77.0% (which...

On a particular summer day, the temperature is 30.0°C and the relative humidity is 77.0% (which means that the partial pressure of water vapor in the ambient air is 77.0% of the equilibrium vapor pressure of water). A sample of this air is placed in a 1.00 L flask, which is then closed and cooled to 5.00'C. A: 30.0°C, the vapor pressure of water is 31.8 mmHg. and at 5.00°C is 6.50 mmHg. What is the mass (in grams) of...
Humidity is the amount of water vapor in the air at a given time

Humidity is the amount of water vapor in the air at a given time. At warm temperatures, air can hold more moisture than it can at cold temperatures. Relative humidity is the amount of vapor the air is holding expressed as a percentage of the amount the air is capable of holding. For example, at 86 degrees Fahrenheit, air can hold a maximum of 30.4 grams of water per cubic meter. If the air at the same temperature is holding...

a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of...

a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of air to hold moisture a ambient temperature. (2 marks) c) Moist air at 22°C and a wet bulb temperature of 9°C enters a steam spray humidifier. The mass flow of the dry air is 90 kg/min. Saturated water vapor at 110 °C is injected into the mixture at a rate of 52 kg/hr. There is no heat transfer with the surroundings, and the pressure...