Entropy means

Options

A. Disorderness
B. Randomness
C. Orderness
D. both 1 & 2

Answer

**Step-by-Step Solution:**

1. **Understanding Entropy**:
- Entropy is a concept in thermodynamics that quantifies the degree of disorder or randomness in a system.

2. **Entropy Formula**:
- The change in entropy (ΔS) can be expressed mathematically as:
\[ \Delta S = \frac{Q}{T} \]
where \(Q\) is the heat transferred to the system and \(T\) is the temperature in Kelvin.

3. **States of Matter and Entropy**:
- The degree of randomness increases as we move from solid to liquid to gas.
- In solids, particles are closely packed and have limited movement, resulting in low entropy.
- In liquids, particles are more spaced out and can move around each other, leading to higher entropy.
- In gases, particles are far apart and move freely, resulting in the highest entropy.

4. **Conclusion**:
- Based on the understanding of entropy and its relationship with disorder, we can conclude that entropy represents the degree of randomness or disorder in a system.

5. **Identifying the Correct Option**:
- Given the options (A, B, C, D), the correct answer is that entropy means "degree of randomness" and "disorderness." Therefore, both options A and B are correct.

**Final Answer**: Entropy means degree of randomness and disorderness (options A and B).

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