Q. of carbon dioxide at is mixed in a closed container with of oxygen at . If both gases are considered as ideal gases, then the temperature of the mixture is (neglect vibrational degree of freedom)

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A

B

C

D

Solution:

For carbon dioxide, number of moles
Molar specific heat of at constant volume
For oxygen, number of moles
Molar specific heat of at constant volume
Let be the temperature of mixture.
Heat lost by = Heat gained by

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