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Karnataka Board PUCPUC Science Class 11

On a Hot Summer Day We Want to Cool Our Room by Opening the Refrigerator Door and Closing All the Windows and Doors. Will the Process Work? - Physics

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Question

On a hot summer day we want to cool our room by opening the refrigerator door and closing all the windows and doors. Will the process work?

Short/Brief Note
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Solution

No. When the door of the refrigerator is left open in a closed room, the heat given out by the refrigerator to the room will be more than that taken from the room. Therefore, instead of decreasing, the temperature of the room will increase at a slower rate.

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Newton’s Law of Cooling
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Chapter 6: Heat Transfer - Short Answers [Page 97]

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HC Verma Concepts of Physics Vol. 2 [English] Class 11 and 12
Chapter 6 Heat Transfer
Short Answers | Q 4 | Page 97

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