Equilibrium constant has a definite value for every reaction at a given temperature . It is independent of _____ and ______.

Answer

To answer the question, we need to understand the properties of the equilibrium constant (K) in chemical reactions.

### Step-by-Step Solution:

1. **Understanding Equilibrium Constant**: The equilibrium constant (K) is a numerical value that expresses the ratio of the concentrations of products to the concentrations of reactants at equilibrium for a given reaction at a specific temperature.

2. **Dependence on Temperature**: The value of the equilibrium constant is dependent on temperature. This means that if the temperature of the system changes, the value of K will also change.

3. **Independence from Concentration and Pressure**: The equilibrium constant is independent of the concentrations of the reactants and products and also independent of the pressure of the system. This means that regardless of how much you change the concentration or pressure of the reactants or products, the value of K will remain constant as long as the temperature is unchanged.

4. **Conclusion**: Therefore, we can fill in the blanks in the question. The equilibrium constant has a definite value for every reaction at a given temperature. It is independent of **concentration** and **pressure**.

### Final Answer:
Equilibrium constant has a definite value for every reaction at a given temperature. It is independent of **concentration** and **pressure**.