At a location where the atmospheric pressure is 960 milli bar, the temperature is 300 C and the elative humidity 60%, calculate the humidity ratio, degree of saturation, enthalpy and dew point. Assume that air and water vapour may be treated as perfect gases. The following data may be used: $M_{air}=29 :$ $M_{water}=18 :$
Universal Gas constant = 8.314 kJ/kg mole K
Vapour pressure of water follows the equation
lnP = 19.013 - 
$\frac{5325}{T}$ , P in kPa & T in K