An airflow A at 1.5 m^3/s, 20 degrees celsius and a moisture content of 4 g/kg, is mixed with a different airflow B at 3 m^3/s, with relative moisture content at 50% and a temperature of 30 degrees celsius.

The resulting airflow C is thereafter heated to 40 degrees celsius by passing a heating coil.

What is the effect of the heating coil? The flow rate change over the heating coil can be neglected.

hint: First decide the flow rate and enthalpy of the resulting airflow C at the same ATM as airflow A and B. Mollier diagram can be used.