A stream of air is fed to a process at a rate of $0\mathrm{.}80\frac{m3}{h}$ subjected to a temperature of $25$C and pressure of $1\mathrm{.}3134$ bar. If the relative humidity is$80\%.$a$)$ What is its wet bulb temperature $(\backslash$deg C$)$

B$)$ What is the mass fraction of dry air w$)$ in the stream?

C$)$ If the saturation pressure is $0\mathrm{.}03$ bar, what is the mole fraction of vapor water $($Yh$20)$ in the stream?

D$)$ What is the molar flow of the air stream $($mol$/$min$)?$