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A gas stream contains 22 mol% isopropanol in air. You are designing a process to reduce...

A gas stream contains 22 mol% isopropanol in air. You are designing a process to reduce the isopropanol content in the gas to 2 mol%. You decide to do this by cooling the stream and condensing some of the isopropanol. Assuming the process operates at 1 atm (760 mmhg), to what temperature must the gas be cooled? Give your answer in degrees Celsius. The saturation pressure of isopropanol can be modeled using Antoine's equation, where log10Psat=8.11778-1580.92(219.61+T), with Psat is in mmHg and T is in Celsius.

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