Which of these factors does not govern the stability of a conformation in acyclic compounds?

Options

A. Torsional strain
B. Angle strain
C. Electrostatic forces of interaction
D. Steric interactions

Explanation

To determine which factor does not govern the stability of a conformation in acyclic compounds, we need to analyze the options provided and understand the relevant concepts.

### Step-by-Step Solution:

1. **Understanding Acyclic Compounds**:
- Acyclic compounds are open-chain compounds that do not form rings. Examples include alkanes, which have a linear structure.

2. **Identifying the Factors**:
- The factors that typically influence the stability of conformations in acyclic compounds include:
- Torsional strain
- Electrostatic forces of attraction
- Steric interactions
- Angle strain

3. **Analyzing Each Factor**:
- **Torsional Strain**: This occurs due to the repulsion between electrons in bonds that are eclipsed. It affects the stability of acyclic compounds.
- **Electrostatic Forces of Attraction**: These forces arise between charged species and can influence the stability of conformations in acyclic compounds.
- **Steric Interactions**: These are non-bonding interactions that affect the shape and reactivity of molecules, thus influencing stability.
- **Angle Strain**: This is specific to cyclic compounds where the internal angles deviate from the ideal angles (e.g., 109.5° for tetrahedral). This strain does not apply to acyclic compounds as they do not have fixed angles like rings.

4. **Conclusion**:
- Among the options, angle strain is the factor that does not govern the stability of a conformation in acyclic compounds. Therefore, the correct answer is **Angle Strain**.

### Final Answer:
**Angle strain does not govern the stability of a conformation in acyclic compounds.**