Q.

Following represent the Maxwell distribution curve for an ideal gas at two temperature T1 and T2. Which of the following options are true
Umps = most probable velocity 

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a

The fraction of molecules having  Umps  decreases as temperature increases

b

Umps  decreases as temperature decreases

c

Total area under the two curves is independent of moles of gas

d

T1>T2

answer is A, B, D.

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Detailed Solution

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A)   area under the curve gives fraction of molecules and total area is constant.
 B) Umps decreases with decrease in temperature.
 C) T2 is higher temperature
D) As seen from graph ;

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