Two bodies A and B are said to be in thermal equilibrium with each other if they have same

Options

A. pressure
B. volume
C. temperature
D. Area

Answer

To solve the question, we need to determine the condition under which two bodies A and B are said to be in thermal equilibrium with each other.

### Step-by-Step Solution:

1. **Understanding Thermal Equilibrium**:
- Two bodies are in thermal equilibrium when there is no net heat transfer between them. This means that they do not exchange heat energy.

2. **Identifying the Key Factor**:
- The primary factor that determines whether heat will flow between two bodies is their temperature. Heat flows from a hotter body to a cooler body until they reach the same temperature.

3. **Setting Up the Condition**:
- For bodies A and B to be in thermal equilibrium, the temperature of body A must equal the temperature of body B. Mathematically, this can be expressed as:
\[ T_A = T_B \]
- If this condition is satisfied, there will be no heat transfer between the two bodies.

4. **Evaluating the Options**:
- The options given are:
- Pressure
- Volume
- Temperature
- Area
- Among these options, the only one that directly relates to the condition of no heat transfer is temperature.

5. **Conclusion**:
- Therefore, the correct answer is that two bodies A and B are said to be in thermal equilibrium with each other if they have the same **temperature**.

### Final Answer:
The correct option is **temperature**.

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