Question

If the door of a refrigerator is kept open, the room in which the refrigerator is kept

• A. gets cooled
• B. gets heated
• C. neither gets cooled nor gets heated
• D. gets cooled or heated depending on the initial temperature of the room

Answer 1

Answer: (B)

gets heated

$\text{Solution}:$

1. If a refrigerator's door is kept open, then room will become hot, because then refrigerator exhaust more heat into the room than earlier.

2. In this way, temperature of the room increases and room becomes hot.

3. No refrigerator is efficient. Thus it exhaust more heat into the room than it extract from it.

$\text{Hence B is the correct option}$