What will happen if temperature is increased in the dissolution of `CO_(2)` gas in water ?

Options

A. solubility decreases
B. solubility increases
C. solubility remains unchanged
D. None of these

Explanation

To solve the question regarding the effect of temperature on the dissolution of CO₂ gas in water, we can follow these steps:

### Step 1: Understand the dissolution process
When CO₂ gas is dissolved in water, it forms carbonic acid (H₂CO₃). The dissolution process can be represented as:
\[ \text{CO}_2(g) + \text{H}_2O(l) \rightleftharpoons \text{H}_2CO_3(aq) \]

### Step 2: Identify the relationship between temperature and solubility
The solubility of gases in liquids generally decreases with an increase in temperature. This is due to the fact that higher temperatures provide more kinetic energy to the gas molecules, making them more likely to escape from the liquid phase back into the gas phase.

### Step 3: Apply Le Chatelier's Principle
According to Le Chatelier's Principle, if a system at equilibrium is subjected to a change in conditions (like temperature), the equilibrium will shift to counteract that change. For the dissolution of CO₂, increasing the temperature will shift the equilibrium to the left, favoring the formation of CO₂ gas and reducing the amount of dissolved CO₂.

### Step 4: Conclude the effect of increased temperature
Therefore, if the temperature is increased during the dissolution of CO₂ in water, the solubility of CO₂ will decrease. This means that less CO₂ will remain dissolved in the water.

### Final Answer
If the temperature is increased in the dissolution of CO₂ gas in water, the solubility of CO₂ will decrease.

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