Both temperature and pressure can affect solubility of a gas. Which combination is correct?
Answer and explanation
Correct answer: Higher solubility at low temperature and high pressure
For most gases dissolved in liquids, increasing pressure increases solubility because more gas molecules are forced into contact with the liquid. Lowering temperature usually reduces the tendency of dissolved gas to escape, so it also favours dissolution. Consequently, low temperature and high pressure are the favourable combination. Heating and depressurising generally promote gas release rather than absorption.
Frequently asked questions
What is the correct answer to this question?
Higher solubility at low temperature and high pressure
Why is this the correct answer?
For most gases dissolved in liquids, increasing pressure increases solubility because more gas molecules are forced into contact with the liquid. Lowering temperature usually reduces the tendency of dissolved gas to escape, so it also favours dissolution. Consequently, low temperature and high pressure are the favourable combination. Heating and depressurising generally promote gas release rather than absorption.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
