The question is incomplete; the complete quqestion is ;
iv. What happens to [CO2] when the H2O is added?
a. increased
b. decreased
c. no change
Answer:
decreased
Step-by-step explanation:
Recall that the reaction shown in the question is endothermic (positive change in enthalpy).
When water is added to the system, carbonic acid is formed as follows;
CO2(g) + H2O(l) ---> H2CO3(aq)
This reaction is decreases the concentration of the carbon IV oxide as it dissolves in the water.