For Relative Humidity, working equations are as follows:

ln P s=A− BT (K )−C

Ps=exp[ A− BT (K )−C ] ①

%RH=PVPS

PV=%RH (PS ) ②

Υ=MMV

MMG( PVPT−PS ) ③

Antoine Coefficient

A 15.9008 Molecular Mass (kg/kmol)

B 2788.51 Benzene 0.078114

C 52.36 Nitrogen gas 0.028014

70% RH

Tdb (°C)

Humidity P at sat'n (mmHg) P vapor (mmHg)

10 0.122047451 45.52875424 31.87012797

15 0.159730256 58.82437493 41.17706245

20 0.207500103 75.19825645 52.63877952

25 0.267917339 95.17417765 66.62192436

30 0.34431424 119.3303548 83.53124835

35 0.441128161 148.3004267 103.8102987

40 0.564428781 182.774004 127.9418028

45 0.722783435 223.4967813 156.4477469

50 0.928740983 271.2702204 189.8891543