According to Le-chatelier's principle, which of the following factors influence a chemical system

Options

A. Concentration only
B. Pressure only
C. Temperatuer only
D. Concentration, pressure and temperatue

Answer

To solve the question regarding which factors influence a chemical system according to Le Chatelier's principle, let's break down the steps:

### Step 1: Understand Le Chatelier's Principle
Le Chatelier's principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change and restore a new equilibrium.

### Step 2: Identify the Factors
The factors that can influence a chemical equilibrium include:
- **Concentration**: Changing the concentration of reactants or products can shift the equilibrium.
- **Pressure**: Changing the pressure (especially in gaseous reactions) can affect the equilibrium position.
- **Temperature**: Changing the temperature can shift the equilibrium depending on whether the reaction is exothermic or endothermic.

### Step 3: Analyze the Options
Now, let's analyze the provided options:
1. **Concentration only**: This is incorrect because other factors also influence equilibrium.
2. **Pressure only**: This is also incorrect for the same reason.
3. **Temperature only**: This is incorrect as well.
4. **Concentration, pressure, and temperature**: This is the correct option since all these factors can influence a chemical system according to Le Chatelier's principle.

### Step 4: Conclusion
The correct answer is **Option 4: Concentration, pressure, and temperature**.