$($b$)$ The dry bulb temperature and dew point of ambient air were found to be $303K$ and $289K$ respectively Barometer reads $100$kPa. Estimate: $($i$)$ Absolute molal humidity $($ii$)$ Absolute humidity $($iii$)\%$ RH $($iv$)\%$ Saturation $($v$)$ Humid heat.

Data: Vapour Pressure of water at $289K=1\mathrm{.}818$kPa

Vapour Pressure of water at $303K=4\mathrm{.}243$kPa