If solubility of a gas in a liquid has to be increased, which method is most suitable?
Answer and explanation
Correct answer: Increase pressure and keep temperature low
For a gas in a liquid, Henry's law shows that higher partial pressure favours greater dissolution. In addition, gas solubility generally decreases when temperature rises, because energetic gas particles escape more readily. Thus high pressure and low temperature provide the most favourable combination. Lowering pressure, heating, or boiling would promote gas escape rather than retention.
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What is the correct answer to this question?
Increase pressure and keep temperature low
Why is this the correct answer?
For a gas in a liquid, Henry's law shows that higher partial pressure favours greater dissolution. In addition, gas solubility generally decreases when temperature rises, because energetic gas particles escape more readily. Thus high pressure and low temperature provide the most favourable combination. Lowering pressure, heating, or boiling would promote gas escape rather than retention.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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