Liquid is filled in a vessel which is kept in a room with temperature 20 C When the temperature of the liquid is 80 C then it looses heat at the rate of 60 cal/s. What will be the rate of loss of heat when the temperature of the liquid is 40 C

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Liquid is filled in a vessel which is kept in a room with temperature 20 C When the temperature of the liquid is 80 C then it looses heat at the rate of 60 cal/s. What will be the rate of loss of heat when the temperature of the liquid is 40 C

83 viewsNovember 30, 2017Class 11, 12 – Chemistry

abhishek (anonymous) Posted November 1, 2017 doubts approved November 30, 2017

1. 180 cal/s
2. 40 cal/s
3. 30 cal/s
4. 20 cal/s

1 Answer

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Answer 1 · 2017-11-30T08:36:40+00:00

We know that,
Q/t α (T2 – T1)
So,
[(Q/t)1]/[(Q/t)2] = [(80 – 20)]/[(40 – 20)]
[(Q/t)2] = 20 cal/s

Hence, correct option is 4

Liquid is filled in a vessel which is kept in a room with temperature 20 C When the temperature of the liquid is 80 C then it looses heat at the rate of 60 cal/s. What will be the rate of loss of heat when the temperature of the liquid is 40 C

1 Answer

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