\( 800 \mathrm{~m}^{3} / \mathrm{min} \) of re-circulated air at \( 22^{\circ} \mathrm{C} \) (DBT) and \( 10^{\circ} \) dew point temperature is to mixed with \( 300 \mathrm{~m}^{3} / \mathrm{min} \) of fresh air at \( 30^{\circ} \mathrm{C} \) (DBT) and \( 50 \% \) RH. Determine the enthalpy, specific volume, humidity ratio and dew point temp of the resultant mixture.