Assertion: The ratio of rms speed and average speed of a gas molecules at a given temperture is `sqrt3:sqrt(8//pi)` Reason: `c_(rms)c_(av.)`A. If both assertion and reason are true and reason is the correct explanation os assertion.B. If both assertion and reason are true but reason is not be correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Assertion: The ratio of rms speed and average speed of a gas molecules

1.	Assertion: The ratio of rms speed and average speed of a gas molecules at a given temperture is `sqrt3:sqrt(8//pi)` Reason: `c_(rms)c_(av.)`A. If both assertion and reason are true and reason is the correct explanation os assertion.B. If both assertion and reason are true but reason is not be correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - B `c_(rms)=sqrt((3kT)/(m))and c_(av)=sqrt((8kT)/(pim))` `therefore(c_(rms))/(c_(av))=(sqrt3)/(sqrt((8//pi)))gt1` Thus, Assertion is true. Here Reason is also true because `c_(rms) gt c_(av)` but Reason is not the correct explanation of Assertion.

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