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Question


The given figure shows the Maxwell distribution of molecular speeds of a gas at three different temperature T1,T2 and T3. The correct order of temperature is:
858662_42e8928e26e94f279806dd6f920536ac.png

A
T1>T2>T3
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B
T1>T3>T2
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C
T3>T2>T1
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D
T2>T3>T1
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Solution

The correct option is C T3>T2>T1
Increase in temperature leads to the increase in the motion of molecules. As a result the value of molecular speed increases with temperature, therefore the Maxwell distribution curve shifts towards right with the increase in temperature.
The Maxwell - Boltzmann distribution is affected by temperature. At lower temperatures, the molecules have less energy. Therefore, the speeds of the molecules are lower and the distribution has a smaller range. As the temperature of the molecules increases, the distribution flattens out.

Correct order of temperature is:-
T3>T2>T1

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