Q. 64.0( 1 Vote )

Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?
A. Sum of the temperatures of the two bodies

B. Total heat of the two bodies

C. Total internal energy of the two bodies

D. Internal energy of each body

Answer :

When two bodies of different temperatures are missed in a calorimeter, the heat gets exchanged between the molecules of the system, but no heat is exchanged in the surrounding in a calorimeter.

Thus, the total internal energy of the bodies remains conserved as external work done is zero.

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