Why may gas escape faster from an open drink in hilly regions?
Answer and explanation
Correct answer: Lower atmospheric pressure may reduce gas solubility
Atmospheric pressure generally decreases with altitude. For an open carbonated drink, the gas above the liquid is therefore at a lower pressure, and Henry's law predicts a lower equilibrium solubility. Dissolved gas escapes until a new balance is approached. The effect is not caused by water losing its molecules, a higher pressure, or a change in bottle colour.
Frequently asked questions
What is the correct answer to this question?
Lower atmospheric pressure may reduce gas solubility
Why is this the correct answer?
Atmospheric pressure generally decreases with altitude. For an open carbonated drink, the gas above the liquid is therefore at a lower pressure, and Henry's law predicts a lower equilibrium solubility. Dissolved gas escapes until a new balance is approached. The effect is not caused by water losing its molecules, a higher pressure, or a change in bottle colour.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
