Convert 25oC to Kelvin.
K = oC + 273
 25oC  +  273
=
298 K
How many kPa is 1.37 atm?
101.3 kPa
X kPa  =  1.37 atm
=  138.8 kPa
1 atm
How many mm Hg is 231.5 kPa?
760 mm Hg
X mm Hg  =  231.5 kPa
=  1737 mm Hg
101.3 kPa