At ordinary temperatures, water is a poor solvent for organic substances. But at high

Chapter 13, Problem 13.157

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QUESTION:

At ordinary temperatures, water is a poor solvent for organic substances. But at high pressure and above 2008C, water develops many properties of organic solvents. Find the minimum pressure needed to maintain water as a liquid at 200.8C (DHvap 5 40.7 kJ/mol at 1008C and 1.00 atm; assume that this value remains constant with temperature).

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QUESTION:

At ordinary temperatures, water is a poor solvent for organic substances. But at high pressure and above 2008C, water develops many properties of organic solvents. Find the minimum pressure needed to maintain water as a liquid at 200.8C (DHvap 5 40.7 kJ/mol at 1008C and 1.00 atm; assume that this value remains constant with temperature).

ANSWER:

Step 1 of 2

Here we asked to find the minimum pressure

So we can use Clausius- Clapeyron equation

 

Where

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