Refrigerant R-134a vapor enters the condenser at 124 psig, 100°F and leaves at 80°F. Its pressure will be approximately...

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Multiple Choice

Refrigerant R-134a vapor enters the condenser at 124 psig, 100°F and leaves at 80°F. Its pressure will be approximately...

Explanation:
In a condenser, the pressure is essentially fixed as the refrigerant releases heat and condenses from vapor to liquid. The condenser’s job is to reject heat at a set high-side pressure determined by the cooling medium and the compressor discharge. As the refrigerant cools from 100°F to 80°F, it changes phase but the pressure stays about the same. So the leaving state is at roughly the same pressure as the entering state, about 124 psig. The other options imply a significant pressure change, which isn’t how a condenser behaves.

In a condenser, the pressure is essentially fixed as the refrigerant releases heat and condenses from vapor to liquid. The condenser’s job is to reject heat at a set high-side pressure determined by the cooling medium and the compressor discharge. As the refrigerant cools from 100°F to 80°F, it changes phase but the pressure stays about the same. So the leaving state is at roughly the same pressure as the entering state, about 124 psig. The other options imply a significant pressure change, which isn’t how a condenser behaves.

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