In a refrigerator heat from inside at 273k is transfer room temperature 300k how many joule of heat shell be delivered to room for each joule of electrical energy to be conducted
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hey...here is your answer
instead of finding coefficient of performance of refrigirator.then finding the heat derived out(Q2) from refrigirator and then finding heat given to surrounding (Q1).
The question could be answered in three simple steps.
we know efficiency =work output(W) / heat input(Q1)...1
.
and efficiency is also = 1 - T2/T1
. = 1 - 273/300
. efficiency = 9/100.
now from 1.
. 9/100 = W/Q1
here W= 1J.... given
so 9/100= 1/Q1
solving, Q1= 11.11 J.
instead of finding coefficient of performance of refrigirator.then finding the heat derived out(Q2) from refrigirator and then finding heat given to surrounding (Q1).
The question could be answered in three simple steps.
we know efficiency =work output(W) / heat input(Q1)...1
.
and efficiency is also = 1 - T2/T1
. = 1 - 273/300
. efficiency = 9/100.
now from 1.
. 9/100 = W/Q1
here W= 1J.... given
so 9/100= 1/Q1
solving, Q1= 11.11 J.
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