Question

The freezer in a refrigerator is located at the top section so that

• A. The motor is not heated
• B. The heat gained from the environment in high
• C. The heat gained from the environment is low
• D. The entire chamber of the refrigerator is cooled quickly due to convection

Answer 1

The correct option is D

The entire chamber of the refrigerator is cooled quickly due to convection

The explanation for the correct answer:

Option (D): The entire chamber of the refrigerator is cooled quickly due to convection

1. The freezer of the refrigerator is the coldest part and it is the source of coldness in the refrigerator.
2. The air in the freezer is heavier because of the high vapor content.
3. The freezer is kept above so that the cold air which is heavier than the hot air can reach to the bottom compartment. because the density of cold air is more than hot air.
4. The hot air will go up and become cool by the freezer.
5. So, a convection cycle is set and the entire chamber will become cold by this convection cycle.

The explanation for the incorrect answers:

Option (A): The motor is not heated

The position of the freezer has nothing to do with the motor.

Option (B): The heat gained from the environment in high

The heat from the environment has no effect on the position of the freezer.

Option (C): The heat gained from the environment is low

The heat from the environment has no effect on the position of the freezer.

Hence, Option (D) is correct.