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Equilibrium
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18/10/2021 11:28 am
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If the reaction between CO2 and H2O is
CO2 + H2O ⇌ H2CO3 ⇌ H+ + HCO3-
If CO2 escapes from the system
(a) pH will decrease
(b) H+ concentration will decrease
(c) H2CO3 concentration will be altered
(d) The forward reaction is promoted
1 Answer
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18/10/2021 11:29 am
Correct answer: (b) H+ concentration will decrease
Explanation:
CO2 + H2O ⇌ H2CO3 ⇌ H+ + HCO3-
If CO2 escapes, the equilibrium will shift to LHS and [H+] concentration will decrease.