When a bottle of a carbonated cold drink is opened, the gas comes out with a rapid fizz. According to Le-Chatelier's principle and phase equilibrium, this is primarily due to:

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Prashant Kotian · Accepted Answer

Correct answer: C. The relevant equilibrium is . The solubility of a gas in a liquid is directly proportional to its partial pressure above the liquid (Henry's Law). Opening the bottle equalizes the high internal pressure with the lower atmospheric pressure. The sudden decrease in pressure shifts the equilibrium backward, turning aqueous into gaseous , creating a fizz.

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