Answer:
It will decrease the pH of the water.
Explanation:
When carbon dioxide gets dissolved in water, it changes its pH.
The pH of water will become acidic.
In dissolved state, carbon dioxide forms carbonic acid with water as shown in the equation.
[tex]H_{2}O+CO_{2}--->H_{2}CO_{3}[/tex]
This carbonic acid gets dissociated as shown in equation.
[tex]H_{2}CO_{3}--->2H^{+}+CO_{3}^{-2}[/tex]
Due to increase in concentration of hydrogen ion, the pH of water decreases.
