Air at $50\mathrm{.}0\%$ relative humidity is cooled isobarically at $1$atm absolute from $75\mathrm{.}0C$ to $35\mathrm{.}0C.$

a$.$ Estimate the dew point and the degrees of superheat of the air at $75\mathrm{.}0C.$

Dew point:

$C$

Degrees of superheat:

$C$

b$.$ How much water condenses $($mol$)$ per cubic meter of feed gas? $($See Example $6\mathrm{.}3-2)$

mol

c$.$ Suppose a sample of the $75\mathrm{.}0C$ air is put in a closed variable$-$volume chamber containing a mirror and the pressure is raised at

constant temperature until a mist forms on the mirror.

At what pressure $($atm$)$ would the mist form? $($Assume ideal gas behavior.$)$