chemistry question #157



Sonia, a 17 year old female from the Internet asks on March 20, 2000,

Q:

How could I decrease the boiling point of a substance without changing the pressure of the liquid?

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the answer

Barry Shell answered on March 20, 2000, A:

This can be done by mixing different liquids of different boiling points together. For instance, if you mix ethyl alcohol and water, the liquid will boil at a boiling point somewhere in between about 78 degrees C for alcohol and 100 degrees C. for water. Chemistry books have charts listing different boiling points. Look up minimum boiling mixtures, or azeotropes in the index. Good luck!

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