Two bodies with thermal energies 500 calories and 800 calories are brought in contact, then

Options

A. Heat flown from lower energy to higher energ
B. Heat flown from higher energy to lower energy
C. No heat flow
D. Can't be predicted with given information

Explanation

To solve the problem, we need to understand the concept of thermal energy and heat transfer between two bodies when they are brought into contact.

### Step-by-Step Solution:

1. **Identify the Thermal Energies**: We have two bodies with thermal energies of 500 calories (Body 1) and 800 calories (Body 2).

2. **Understand Heat Transfer**: When two bodies with different thermal energies are brought into contact, heat will flow from the body with higher thermal energy to the body with lower thermal energy until thermal equilibrium is reached.

3. **Determine the Direction of Heat Flow**: In this case, Body 2 has a higher thermal energy (800 calories) compared to Body 1 (500 calories). Therefore, heat will flow from Body 2 to Body 1.

4. **Conclusion**: The correct conclusion is that heat flows from the body with higher thermal energy (800 calories) to the body with lower thermal energy (500 calories).

### Final Answer:
Heat will flow from the body with 800 calories to the body with 500 calories.

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