Question
Find the quantity of heat rejected in the room per minute by a refrigerator fitted with compressor of power 240W. The temperature of space inside the refrigerator is -3°C and that of room is 27°C.
Solution
Given,
Initial temperature, 
Final temperature, 
Power, P = 240 W
The coefficient of performance of refrigerator,
Therefore,
Quantity of heat removed from refrigerator per second is, ![<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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Quantity of heat rejected to room per second,
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Quantity of heat rejected to room per minute, 
