ESCO Air Conditioning Practice Exam 2025 – Complete Study Resource

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If R-134a vapor enters the condenser at 124 psiG and 100°F and leaves as subcooled liquid by 20°F, what will be the approximate pressure?

67 psig

When R-134a vapor enters the condenser at a high pressure and temperature, it will undergo condensation and turn into subcooled liquid. This process results in a decrease in both pressure and temperature. Therefore, the correct answer is A 67 psig. The other options are incorrect because they either do not account for the decrease in temperature or have a slightly higher pressure, which would not be possible in this scenario.

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87 psig

107 psig

124 psig

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