According to initial theory, the heat was considered as fluid called ‘Caloric’. The caloric fluid flow from

Options

A. hotter to colder body
B. colder to hotter body
C. could flow In either direction! In different situations
D. None of the above

Answer

To solve the question regarding the flow of caloric fluid (heat) according to the initial theory, we can break it down into steps:

### Step-by-Step Solution:

1. **Understanding Caloric Theory**:
- The initial theory of heat, known as the caloric theory, proposed that heat is a fluid called "caloric". This fluid was thought to flow from one body to another.

2. **Identifying Temperature Difference**:
- In the caloric theory, the flow of caloric fluid is influenced by the temperature difference between two bodies. A body with a higher temperature is assumed to have more caloric fluid than a body with a lower temperature.

3. **Direction of Flow**:
- The caloric fluid is believed to flow from the hotter body (higher temperature) to the colder body (lower temperature). This is based on the idea that heat energy naturally moves towards equilibrium.

4. **Establishing Equilibrium**:
- The flow of caloric fluid continues until thermal equilibrium is reached, meaning both bodies have the same temperature. For example, if one body is at 500 K and another at 300 K, the flow will continue until both reach an equilibrium temperature of (500 K + 300 K) / 2 = 400 K.

5. **Conclusion**:
- Based on the caloric theory, the correct answer to the question is that heat (caloric fluid) flows from the hot body to the cold body.

### Final Answer:
The caloric fluid (heat) flows from a hot body to a cold body.

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