The dry bulb and wet bulb temperature of an enclosed room was 27 deg C and 23 deg C, respectively. Determine the following: Dew point temperature (in deg F) Enthalpy (BTU/lb) Specific volume (m^3/kg) Relative Humidity Humidity Ratio (lb air/ lb dg)

Inside a building, the temperature is −5°C, and the relative humidity is 31 percent. How much water vapor (in kg) is there in each cubic meter of 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.

Humid air flows in a duct at atmospheric pressure. The temperature and relative humidity are  T_db=34℃, T_wb=26℃. Add the point on the attached chart and complete the other properties of this humid air in the table below:

Match each type of process (isobaric - isochoric -adiabatic )                              1- Apressure vessel which is experiences a temperature rise over the day     2- Compression of gas takes place in an insulated piston cylinder                 3- A frictionless vertical piston cylinder arrangement which experiences 30j of heat