Why do bubbles come out rapidly when a soft drink bottle is opened?
Answer and explanation
Correct answer: Dissolved gas escapes due to decreased pressure
A sealed soft-drink bottle contains carbon dioxide under pressure, so a relatively large amount remains dissolved. When the cap is opened, the pressure above the liquid falls. According to Henry's law, gas solubility then decreases, so excess carbon dioxide escapes as visible bubbles. The water, sugar, and temperature do not explain the rapid fizz.
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What is the correct answer to this question?
Dissolved gas escapes due to decreased pressure
Why is this the correct answer?
A sealed soft-drink bottle contains carbon dioxide under pressure, so a relatively large amount remains dissolved. When the cap is opened, the pressure above the liquid falls. According to Henry's law, gas solubility then decreases, so excess carbon dioxide escapes as visible bubbles. The water, sugar, and temperature do not explain the rapid fizz.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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