If the door of a refrigerator is kept open,th | vedclass

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Question

(B) refrigerator works on the principle of a heat pump. It extracts heat from the interior (cooling chamber) and rejects it into the surrounding room.

Vedclass · Accepted Answer

Room is heated

Vedclass · Answer

(B) refrigerator works on the principle of a heat pump. It extracts heat from the interior (cooling chamber) and rejects it into the surrounding room. When the door is kept open,the refrigerator continuously extracts heat from the room air and rejects it back into the room,along with the heat generated by the compressor motor due to electrical work done. Since the total heat rejected into the room is the sum of the heat extracted from the room and the heat equivalent of the work done by the compressor,the net effect is an increase in the room temperature. Therefore,the room gets heated.

If the door of a refrigerator is kept open,then which of the following is true?

Similar Questions

$A$ Carnot heat engine has an efficiency of $10 \%$. If the same engine is worked backward to obtain a refrigerator,then the coefficient of performance of the refrigerator is

Freezing compartment of a refrigerator is at $0^{\circ} C$ and room temperature is $27.3^{\circ} C$. Work done by the refrigerator to freeze $1 \ g$ of water at $0^{\circ} C$ is $(L_{\text{ice}} = 80 \ cal \ g^{-1})$. (in $J$)

Write the formula for the coefficient of performance of a heat pump.

The equation $\beta = \frac{Q_2}{Q_1 - Q_2}$ is true or false?

The coefficient of performance of a refrigerator is defined as:

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