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When a aerated soft drink bottle is kept open it will go flat. Why? |
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Answer» (i) In the sealed aerated soft drink bottle, the dissolved CO2 , in the form of carbonic acid and gaseous CO2 are in equilibrium. (ii) When we open the bottle the gaseous CO2 will escape and the dissolved CO2 begins to undissolve to the gas phase to maintain the equilibrium. So when we keep the bottle open for a long time it will go flat with all the dissolved CO2 gone. |
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