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- IIT JAM
- Physics (PH)
What will happen to the temperature of a isolated room, if a fridge is on and kept open? (a) temperature will rise (b) temperature will fall (c) remain constant
What will happen to the temperature of a isolated room, If a fridge is on and kept open? (A) Temperature will rise (B) Temperature will fall (C) Remain constant (D) Not enough data ia chaMn below.
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Dhairya sharma Best Answer
A refrigerator is a heat engine it extracts heat from low temperature reservoir and transfer it to high temperature. If a refrigerator’s door is kept open, then room will become hot, because then refrigerator exhaust more heat into the room than earlier. In this way, temperature of the room increases and room becomes hot. No refrigerator is efficient. Thus it exhaust more heat into the room than it extract from it. Thus, a room cannot be cooled by keeping the door of a refrigerator open.
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so correct option is a - temperature will rise
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Chandra prakash
temperature will increase