Question

In: Chemistry

An air parcel has a temperature of 30 degrees Celsius and a relative humidity of 50%...

An air parcel has a temperature of 30 degrees Celsius and a relative humidity of 50% at an air pressure of 1000mb. Compute the following:

a) water vapor pressure

b) mixing ratio

c) specific humidity

d) specific heat of moist air at constant pressure; and,

e) virtual temperature

Solutions

Expert Solution


Related Solutions

On a particular summer day, the temperature is 30 degrees Celsius and the relative humidity is...
On a particular summer day, the temperature is 30 degrees Celsius and the relative humidity is 80% (which means that the partial pressure of water vapor in the ambient air is 80% of the equilibrium vapor pressure of water). A sample of this air is placed in a 1 Liter flask which is then closed and cooled to 5 degrees Celsius. What is the mass in grams of water that still exists as vapor in the flask? How much liquid...
300% excess air having a dry bulb temperature of 25 degree celsius and relative humidity of...
300% excess air having a dry bulb temperature of 25 degree celsius and relative humidity of 60% is used to fully combust 1 kg/hr of methane in a boiler and the heat of reaction is used to generate steam. Hot water enters the boiler as a saturated liquid at 102 degree celsius and leaves as superheated at 40 bar and 400 degree celsius. The combusted gases leave the boiler at 450 degree celsius and are then cooled to 25 degree...
Air at a temperature of 20 0C and 750 mm Hg has a relative humidity of...
Air at a temperature of 20 0C and 750 mm Hg has a relative humidity of 80%. Calculate, (i)The molal humidity of the air (ii)The molal humidity of this air if its temperature is reduced to 10 °C and pressure increased to 2000 mm Hg condensing out some of the water (iii)Weight of water condensed from 1000 litre of the original wet air Vapour pressure of water at 20 °C = 17.5 mm Hg Vapour pressure of water at 10...
If at 30F the air has 25% relative humidity, what is the relative humidity at 70F...
If at 30F the air has 25% relative humidity, what is the relative humidity at 70F and how much moisture must be added to get it up to 50% relative humidity.
Moist air at 30 °C and 50% relative humidity enters a dehumidifier operating at steady state...
Moist air at 30 °C and 50% relative humidity enters a dehumidifier operating at steady state with a mass flow rate of 319.35 kg/min. The moist air passes over a cooling coil and water vapor condenses. Condensate (condensed water) exits at 10 °C. Saturated moist air exits in a separate stream at the same temperature. The pressure remains constant at 1 bar. Determine (a) the rate at which water is condensed, in kg/min, and (b) the heat transfer rate during...
An air conditioning system is to take outdoor air at 30 oC and 70% relative humidity...
An air conditioning system is to take outdoor air at 30 oC and 70% relative humidity at a steady rate of 10 m3/s and to condition it to 25 oC and 50% relative humidity. The outdoor air is first cooled down to 13.9 oC using cooling coil and then heated to the desired condition in the heating section. Assuming the air is at 1 atm pressure, Draw the air conditioning process on the attached psychometric chart. Determine the mass flow...
There are 10 m3/s of moist air at 22C and relative humidity of 50% that enter...
There are 10 m3/s of moist air at 22C and relative humidity of 50% that enter a heating element until its temperature becomes 35C. Determine the amount of heat required and the final %Rh of the air.
At 200 C relative humidity of 1 m3 of air is 60%. when temperature is kept...
At 200 C relative humidity of 1 m3 of air is 60%. when temperature is kept constant and volume is reduced to 0.25 m3 find the mass of moist air that would be condensed. SVP of water at 200 C = 17.5mmHG R= 8.31 J mol-1 K-1
I need answers on 3.2.4 3.2.3 If the air temperature is 15°C and the relative humidity...
I need answers on 3.2.4 3.2.3 If the air temperature is 15°C and the relative humidity 35 percent, calculate the vapor pressure, specific humidity, and air density. Assume standard atmospheric pressure (101.3 kPa). 3.2.4 Solve Prob. 3.2.3 if the air temperature rises to 300C. By what percentage does the specific humidity increase as a result of the temperature rise from 15 to 300C?
In a low temperature drying system, air at 60°C and 10% Relative humidity passes over a...
In a low temperature drying system, air at 60°C and 10% Relative humidity passes over a bed of diced carrots at 20 kg-dry air/sec. The rate of water removal from the carrots Is measured by difference in total weight over time and found to be approximately .16 kg-water/sec. In the system described above, calculate the temperature and relative humidity of the air exiting the drying system.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT