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NEET 2016 Physics and Chemistry Paper 1
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© examsnet.com
Question : 24
Total: 90
A refrigerator works between 4° and 30°C it is reqired to remove 600 clories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is : (Take 1 cal = 4.2 Joules)
[NEET 2016 P1]
2365 W
2.365 W
23.65 W
236.5 W
Validate
Solution:
👈: Video Solution
C.O.P
=
Heat
extracted
effort
put
=
T
2
T
1
−
T
2
;
(
T
2
<
T
1
)
For 1 second analysis
⇒
(
600
)
(
4.2
)
effort
put
=
277
26
⇒ effort put=236.5J
⇒Power=236.5 watt
© examsnet.com
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