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Standard XII

Chemistry

Internal Energy

n moles of ga...

Question

$n m o l e s$ of gas an ideal monatomic gas is confined in a cylinder A of volume $V_{0}$ , pressure $P_{0}$ and temperature $T_{0}$ , this cylinder is connected to another cylinder B with the help of tube of a negligible volume. The cylinder B is fitted with a movable piston which can be adjusted from outside. Initially, the piston is adjusted so that volume of B is 7 $V_{0}$ and B is evacuated and then stopcork is opened so that gas expands and occupies the volume $8 V_{0}$ . [System is thermally isolated from the surroundings].

During this free expansion, the internal energy of the system

Increases

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Decreases

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Remains constant

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Solution

The correct option is C Remains constant
Temperature will be unchanged during the free expansion. As the internal energy is only depend on the temperature of the system. So the internal energy will remain constant.
Ans:(C)

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The correct option is C Remains constantTemperature will be unchanged during the free expansion. As the internal energy is only depend on the temperature of the system. So the internal energy will remain constant.Ans:(C)

The correct option is C Remains constant
Temperature will be unchanged during the free expansion. As the internal energy is only depend on the temperature of the system. So the internal energy will remain constant.
Ans:(C)