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 36 m³/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Use data from the tables. (a) Determine the temperature (degrees Celsius) and relative humidity of air when it leaves the heating section (%).