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Two bodies at different temperatures T1 and T2, if brought in thermal contact do not necessarily settle to the mean temperature (T1+T2)/2?


Two bodies at different temperatures T1 and T2, if brought in thermal contact do not necessarily settle to the mean temperature (T1+T2)/2?


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3 Answers

Swapnil Saxena
102 Points
9 years ago

No, thats necessarily not important to settle them at mean temperatures. Lets first see the mathematical expression for what happens when two bodies with different temperatures r in contact.

When they r brought in contact a heat current will establish between both the bodies which will contiue to flo until the temperature of both the bodies  r equal . 

Let before the bodies settle at equal temperature the heat exchange between them is Q and the temperature at thermal equiibrium is T

Then

Heat lost by body at higher temperature is Q = M1C1(T1-T)

Similar amount of heat is gained by the second body so Q= M2C2(T-T2)

then M1C1(T1-T)= M2C2(T-T2)

Then T = ( M1C1T1 + M2C2T2 ) / (M1C1+M2C2)

So , Heres ur answer.

If two bodies of equal specific heat capacities and  masses  are brought in contact then they setle at equal temperature of (T1+T2)/2

MUSKAN GULATI
22 Points
4 years ago
hi this is shivam gulati an intelligent go to my youtube chanell amazing facts for knogefull videos come fast as soon as possible it is published 1 year ago my best video is what i inside a bulb which i taught in hindi
MUSKAN GULATI
22 Points
4 years ago
hi this is shivam gulati an intelligent go to my youtube chanell amazing facts for knogefull videos come fast as soon as possible it is published 1 year ago my best video is what i inside a bulb which i taught in hindi full

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