What effect does (a) decreasing the pressure or (b) increasing the pressure above a liquid have on the liquid’s boiling point?
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Expert's answer
2015-11-02T12:11:47-0500
At boiling point the pressure of vapors of the liquid equals the pressure above the liquid. Also, the pressure is directly proportional to temperature as shown by Gay-Lussac’s law: p = CT, where C –the constant. a) Hence, if the external pressure decreases the liquid boils at the lower temperature. Boiling point decreases; b) On contrary, increasing the pressure increases the boiling point.
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