QUESTION $4$

$20$ points

Refrigerant$-134$a at $800$ kPa and $100C$ is to be cooled in a condenser by air. The air enters at $100$ kPa and $37C$ with a volume flow rate of $348k\frac{g}{m}in$ and leaves at $95$ kFa and $60C.$ Determine the exit temperature of the refrigerant when mass flow rate is $200k\frac{g}{m}in.$ Write your answer in $C$ with $1$ decimal figure.

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