Question

For air at a given temperature, as the relative humidity is increased isothermally.

• A. The wet bulb temperature and specific enthalpy increase
• B. The wet bulb temperature and specific enthalpy decrease
• C. The wet bulb temperature increases and specific enthalpy decreases
• D. The wet bulb temperature decreases and specific enthalpy increases

Answer 1

The correct option is A The wet bulb temperature and specific enthalpy increase

Relative humidity is increased isothermally,

$\varphi \uparrow ,T_{wb}\uparrow$

As the relative humidity is increased isothermally from state 1 to state 2 for the air. Wet bulb temperature and specific enthalpy both increases.



Relative humidity is increased isothermally