Why is strong fizz produced when a soda water bottle is opened?
Answer and explanation
Correct answer: Dissolved carbon dioxide escapes due to pressure decrease
During manufacture, carbon dioxide is dissolved in water under elevated pressure. The closed bottle maintains a pressure that supports a relatively high dissolved CO₂ concentration. Opening the bottle suddenly lowers the pressure above the liquid, so the equilibrium solubility falls and excess CO₂ leaves the solution as bubbles. Nucleation sites make the bubbles visible as fizz; sugar and water do not undergo the changes described by the other options.
Frequently asked questions
What is the correct answer to this question?
Dissolved carbon dioxide escapes due to pressure decrease
Why is this the correct answer?
During manufacture, carbon dioxide is dissolved in water under elevated pressure. The closed bottle maintains a pressure that supports a relatively high dissolved CO₂ concentration. Opening the bottle suddenly lowers the pressure above the liquid, so the equilibrium solubility falls and excess CO₂ leaves the solution as bubbles. Nucleation sites make the bubbles visible as fizz; sugar and water do not undergo the changes described by the other options.
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.
