The following reaction takes place in the body
`CO_(2)+H_(2)OhArrH_(2)CO_(3)hArrH^(+)+HCO_(3)^(-)`. If `CO_(2)` escapes from the system

Options

A. pH will decrease
B. Hydrogen ion concentration will diminish
C. `H_2CO_2` concentration will be promoted
D. The forward reaction will be promoted

Answer

To solve the problem regarding the equilibrium reaction in the body where CO₂ escapes from the system, we can follow these steps:

### Step 1: Write the equilibrium reaction
The equilibrium reaction given is:
\[ \text{CO}_2 + \text{H}_2\text{O} \rightleftharpoons \text{H}_2\text{CO}_3 \rightleftharpoons \text{H}^+ + \text{HCO}_3^- \]

### Step 2: Understand the effect of CO₂ escaping
When CO₂ escapes from the system, it affects the concentration of CO₂ in the equilibrium. According to Le Chatelier's Principle, if a system at equilibrium is disturbed, the system will adjust to counteract the disturbance and restore a new equilibrium.

### Step 3: Apply Le Chatelier's Principle
Since CO₂ is a reactant in the equilibrium, its removal will shift the equilibrium position to the left to produce more CO₂. This means the reaction will favor the formation of CO₂ from H₂CO₃ and H⁺ + HCO₃⁻.

### Step 4: Determine the effect on H⁺ concentration
As the equilibrium shifts to the left, the concentration of H⁺ ions will decrease because they are being consumed to form H₂CO₃ and CO₂.

### Step 5: Conclude the effect on the system
Thus, the overall effect of CO₂ escaping from the system is a decrease in the concentration of H⁺ ions in the body.

### Final Answer
The concentration of H⁺ ions will diminish.

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