The two linked equilibrium reactions shown below are important in your blood, in
ID: 994393 • Letter: T
Question
The two linked equilibrium reactions shown below are important in your blood, in the ocean and also in fizzy drinks.
2H2O(I) + CO2(g) ? H2CO3(aq) + H2O(l)?H3O+(aq) + HCO3-(aq)
If you open a bottle of fizzy water (without spilling any), bubbles rapidly form.
The amount of water:
a. stays the same, because water is present on both sides of the left hand equilibrium equation.
b. constantly changes, because the new equilibrium is constantly changing.
c. increases, because the gas pressure in the bottle decreases and H2CO3 reacts to produce more CO2.
d. decreases, because water evaporates when the CO2 gas leaves the bottle.
Explanation / Answer
The fizz is caused by carbon dioxide in fizzy drinks. Opening the bottle results in a bit of fizzing as the pressure that has been keeping the carbon dissolved is released.some of the carbon that has been floating at the top of the gets suspended in the liquid . this extra carbocation styas in the larger bubbles than the already dissolved carbon when the bottle is opened, so because of gas pressure in the bottle decreses and H2CO3 reacts to produce more carbondioxide.
ANS: C
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