Moist air at atmospheric presure is at 75 C and relative humidity 48% .

What is ysat of the moist air?

Estimate the dew point of the air.

The Antoine equation with T in C and p in mm Hg has coefficients for water given by

0 to 60 ℃ : A= 8.10765 B=1750.286 C=235.000

60 to 150℃ : A=7.96681 B=1668.210 C= 228.000