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The relationship between the velocity (U) of gas molecule...

The relationship between the velocity (U) of gas molecules and their relative molecular mass (M) is shown by the equation

A.

U = (kM) $\frac{1}{2}$

B.

U = (kM)²

C.

U = $\sqrt{\frac{k}{m}}$

D.

U = $\frac{k}{m}$

View answer & explanation

Correct answer is C

The relationship between (U) of a gas molecule and the relative molecular mass is $\bar{U}$ = ( $\frac{k}{m}$ ) $^{\frac{1}{2}}$

or $\bar{U}$ = $\sqrt{\frac{k}{m}}$

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