Air at $T_1=30C,p_1=\frac{1}{b}ar,50\%$ relative humidity enters an insulated chamber operating at steady state with a mass flow rate of $3k\frac{g}{m}in$ and mixes with a saturated moist air stream entering at $T_2=7C,p_2=\frac{1}{b}ar.$ A single mixed stream exits at $T_3=17C,p_3=\frac{1}{b}ar.$ Neglect kinetic and potential energy effects

Step $1$

Determine mass flow rate of the moist air entering at state $2,$ in $k\frac{g}{m}in.$

$m_2^{}=,k\frac{g}{m}in$