Following reaction is occuring in a lime kiln: `CaCO_(3)(s) hArr CaO(s) +CO_(2)(g)`. Which of the following will result in increase in the production of lime?

Options

A. Adding more `CaCO_(3)`
B. Removing CaO from time to time
C. Removing `CO_(2)` from time to time
D. Yield of CaO can never increase

Answer

To determine which action will increase the production of lime (CaO) in the reaction:

\[ \text{CaCO}_3(s) \rightleftharpoons \text{CaO}(s) + \text{CO}_2(g) \]

we can analyze the effects of different changes based on Le Chatelier's principle.

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- The reaction involves the decomposition of calcium carbonate (CaCO₃) into calcium oxide (CaO) and carbon dioxide (CO₂).
- This is an equilibrium reaction, where both the forward and backward reactions can occur.

2. **Applying Le Chatelier's Principle**:
- Le Chatelier's principle states that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change and restore a new equilibrium.

3. **Analyzing Each Option**:
- **Option 1: Adding more CaCO₃**:
- By adding more reactant (CaCO₃), the equilibrium will shift to the right (forward direction) to produce more products (CaO and CO₂). This will increase the production of both CaO and CO₂.
- However, since we are specifically interested in the production of lime (CaO), this option does contribute to that but does not solely increase CaO.

- **Option 2: Removing CaO**:
- If we remove CaO, the equilibrium will shift to the left (backward direction) to produce more CaO from the reactants. This would not increase the production of lime; instead, it would decrease it since we are removing the product.

- **Option 3: Removing CO₂**:
- If CO₂ is removed, the equilibrium will shift to the right (forward direction) to produce more CO₂. This will also increase the production of CaO because the reaction will favor the formation of products to replace the removed CO₂.
- Since CO₂ is a gas that can escape into the atmosphere, its removal will effectively push the reaction forward, thus increasing the production of lime (CaO).

4. **Conclusion**:
- The best option to increase the production of lime (CaO) is to **remove CO₂** from the system. This action will shift the equilibrium to the right, favoring the formation of more CaO.

### Final Answer:
Removing CO₂ will result in an increase in the production of lime (CaO).