Two rigid boxes containing different ideal gases are placed on a table. Box A contains one mole of nitrogen at temperature while Box B contains one mole of helium at temperature (7/3) The boxes are then put into thermal contact with each other and heat flows between them until the gases reach a common final temperature. (Ignore the heat capacity of boxes). Then, the final temperature of the gases, in terms of is
As we learnt in
Property of internal energy -
U (internal energy) is a state function.
- wherein
i.e. It depends only on initial and final state.
Change in internal energy for cyclic process -
- wherein
Since in a cyclic process initial and final state is same.
Option 1)
This option is incorrect.
Option 2)
This option is incorrect.
Option 3)
This option is incorrect.
Option 4)
This option is correct.
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