Among the following, the correct statement about the chemical equilibrium is :

Options

A. Equilibrium constant is independent of temperature.
B. Equilibrium constant tells us how fast the reaction reaches equilibrium.
C. At equilibrium, the forward and the backward reactions stop so that the concentrations of reactants and products are constant.
D. Equilibrium constant is independent of whether you start the reaction with reactants or products.

Explanation

To solve the question regarding the correct statement about chemical equilibrium, we will analyze each statement provided and determine which one is accurate.

### Step-by-Step Solution:

1. **Understanding Chemical Equilibrium**:
- Chemical equilibrium occurs when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

2. **Evaluating the Statements**:
- **Statement 1**: "Equilibrium constant is independent of temperature."
- This statement is **incorrect**. The equilibrium constant (K) does depend on temperature. As temperature changes, the value of K changes as well.

- **Statement 2**: "Equilibrium constant tells us how fast the reaction reaches equilibrium."
- This statement is also **incorrect**. The equilibrium constant does not provide information about the speed of the reaction. It only indicates the ratio of concentrations of products to reactants at equilibrium.

- **Statement 3**: "At equilibrium, the forward and backward reactions stop."
- This statement is **incorrect**. At equilibrium, both the forward and reverse reactions continue to occur, but their rates are equal, leading to no net change in concentrations.

- **Statement 4**: "Equilibrium constant is independent of whether you start the reaction with reactants or products."
- This statement is **correct**. The equilibrium constant remains the same regardless of whether the reaction starts with reactants or products. It is a property of the reaction at a given temperature.

3. **Conclusion**:
- The correct statement about chemical equilibrium is **Statement 4**: "Equilibrium constant is independent of whether you start the reaction with reactants or products."