Figure provides steady$-$state operating data for a parallel flow heat exchanger in which there are

separate streams of air and water. Each stream experiences no significant change in pressure.

Stray heat transfer with the surroundings of the heat exchanger, and kinetic and potential energy

effects can be ignored. The ideal gas model applies to the air. If each stream exits at the same

temperature, determine the value of that temperature, in K$.$ Look, at the property if required.