Which one of the following statements is fals | vedclass

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(A) The Avogadro number is defined as $6.022 	imes 10^{23} \ mol^{-1}$. Option $(A)$ states the value as $6.02 	imes 10^{21}$,which is incorrect. Op

Vedclass · Accepted Answer

Avogadro number $ = 6.02 	imes 10^{21}$

Vedclass · Answer

(A) The Avogadro number is defined as $6.022 	imes 10^{23} \ mol^{-1}$. Option $(A)$ states the value as $6.02 	imes 10^{21}$,which is incorrect. Option $(B)$ correctly relates average velocity $(\bar{v})$ and root mean square velocity $(u)$ as $\bar{v} = \sqrt{8RT/\pi M}$ and $u = \sqrt{3RT/M}$,leading to $\bar{v} = 0.9213 \ u$. Option $(C)$ is correct because the mean kinetic energy of an ideal gas depends only on temperature $(KE = 3/2 RT)$. Option $(D)$ is the correct formula for root mean square velocity.

Which one of the following statements is false?

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