The value of entropy of the universe is always

Options

A. Constant
B. Decreasing
C. Increasing
D. Zero

Answer

To determine the value of entropy of the universe, we can analyze the options provided and apply the second law of thermodynamics.

### Step-by-Step Solution:

1. **Understanding Entropy**:
- Entropy is a measure of disorder or randomness in a system. In thermodynamics, it is a key concept that helps us understand the direction of spontaneous processes.

2. **Second Law of Thermodynamics**:
- According to the second law of thermodynamics, the total entropy of an isolated system can never decrease over time. It can either increase or remain constant in reversible processes.

3. **Entropy of the Universe**:
- The universe can be considered as an isolated system. Therefore, the total entropy of the universe must either increase or remain constant. However, in real processes, the entropy tends to increase.

4. **Expansion of the Universe**:
- The universe is continuously expanding. As it expands, the number of possible microstates (arrangements of particles) increases, leading to an increase in entropy.

5. **Conclusion**:
- Based on the principles of thermodynamics and the behavior of the universe, we conclude that the entropy of the universe is always increasing.

### Final Answer:
The value of entropy of the universe is always **increasing** (Option C).

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