Explain, why effervescence is seen when a bottle of soda water is opened.

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Solution

Effervescence: It is defined as the formation of gas bubbles in a liquid by a chemical reaction.
Effervescence is seen when a bottle of soda water is opened:
$({CO}_{2})$ Carbon dioxide is present in soda water under pressure.
When the bottle is opened pressure is released.
Because of that ${CO}_{2}$ will bubble out and effervescence will be seen.
Hence, effervescence is seen when a bottle of soda water is opened because it contains ${CO}_{2}$ gas at high pressure and will bubble out.

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Similar questions

Why does effervescence take place when a soft drink bottle is opened at room temperature?

Why does a chilled soft drink bottle not produce a lot of effervescence when opened?

Explain why :

(a) Water is an excellent liquid to use in cooling systems.

(b) A solution is always clear and transparent.

(d) The solute cannot be separated from a solution by filtration.

(e) Fused $C a C l_{2}$ or conc. $H_{2} S O_{4}$ is used in a desiccator.

(f) Effervescence is seen on opening a bottle of soda water.

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