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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Mar 2008 17:13:06 IST
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What will happen if door of a refrigerator is kept open in a room with adibatic walls???
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26 Mar 2008 17:17:40 IST
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the temperature of the room increases
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THE LADDER OF SUCCESS IS NOT CROWDED AT THE TOP |
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26 Mar 2008 17:23:20 IST
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how explain ur answer...
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26 Mar 2008 17:30:04 IST
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i think the temperature of the room will decrease.
b4 the fridge is opened, the temp of the room is obviously > temp inside the fridge.
so, after its opened, heat from the room flows inside the fridge till an equilibrium is attained. As the walls are adiabatic, the heat can't escape outside the room.
so the temperature of the room decreasses..
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26 Mar 2008 17:32:29 IST
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no change...
when the fridge is opened the cooling will spread but as the warm air from outside enters the fridge,the compressor has to work harder so tht the reqd temp is reached inside the fridge so it gets heated up n liberates heat
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26 Mar 2008 17:43:35 IST
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the temperature of room will increase.......................
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26 Mar 2008 18:11:56 IST
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The temp increases coz of the heat emitted by the resistances in the referigerator AS IT IS NOT IDEAL one........otherwise the heat released by referigeratorwud compensate its cooling.
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26 Mar 2008 18:59:36 IST
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the temperature would increase
as soon as the refrigerator is opened it absorbs the moisture in the air in the room
thereby increasing the temperature of the room
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THE LADDER OF SUCCESS IS NOT CROWDED AT THE TOP |
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26 Mar 2008 19:09:07 IST
Accepted Answer [?]
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Acc. to the 2nd law of thermodynamics we have to do work in transferring energy (HEAT) from a cold body to hot body, in case of refrigerator the work is done by electricity IFF the frige is ON than it will extract heat from the air (inside it) and do some work and release the heat from the back(you can check yourself frige is hot at the backside) iff the doors are opend, effectively Electrical energy is converted into heat energy M I rite ? I hope it is not the last post  |
My name is Arnav.
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26 Mar 2008 19:15:44 IST
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ya
if the doors are opend, effectively Electrical energy is converted into heat energy
therefore the temperature increases
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THE LADDER OF SUCCESS IS NOT CROWDED AT THE TOP |
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26 Mar 2008 19:19:21 IST
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temp increaces ... yah rite
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26 Mar 2008 19:24:21 IST
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The fridge transfers heat from inside to outside. If it is open the net heat is zero(cause the fridge is taking heat from one part of the room and putting it back into the room. However, the fridge consumes electricity, and this is converted to heat because of the wire resistance. Hence the temp increases slighly.
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26 Mar 2008 22:22:12 IST
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The temp of the room is increases
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27 Mar 2008 13:34:04 IST
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i think the temperature should increase
ne more answerz????
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27 Mar 2008 20:30:26 IST
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hey frnd if d fridge is kept opened 4 a long time den ganesha 's ansr is rite but if its opened 4 few minutes den d fridge absorbs d heat exerted by d room & maintains cool temperature
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