An air$-$conditioning system operates at a total pressure of $1$ atm and consists of a heating section and a humidifier that supplies wet steam $($saturated water vapor$)$ at $100$C$.$ Air enters the heating section at $10$C and $70$ percent relative humidity at a rate of $37\mathrm{.}00$m$3/$min$37\mathrm{.}00$m$3/$min $,$ and it leaves the humidifying section at $20$C and $60$ percent relative humidity. Use data from the tables.