NEET UG CHEMISTRY MCQ: STATES OF MATTER

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For a given gas at a particular temperature the relationship between root mean square speed

\left(U_{\text {rms}}\right)

, average speed

\left(U_{\mathrm{av}}\right)

, and most probable speed

\left(U_{\mathrm{mp}}\right)

View answer and explanation

Correct option: B

U_{\text {rms }} > U_{\text{av}} > U_{\text{mp}}

Option B (

U_{\text {rms }} > U_{\text{av}} > U_{\text{mp}}

) is correct because the root mean square speed is always greater than the average speed, which is greater than the most probable speed for a given gas at a particular temperature.

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If for the gases, the critical temperatures are mentioned below i.e.

\begin{array}{cccccccccccccccccccc} {\underline {{\text{Gas}}} }&{\underline {\,{\text{Critical}}\,\,{\text{temperature}}} } \\ {\text{A}}&{{T_{{C_1}}}} \\ {\text{B}}&{{T_{{C_2}}}} \\ {\text{C}}&{{T_{{C_3}}}} \\ {\text{D}}&{{T_{{C_4}}}} \end{array}

{T_{{C_1}}} > {T_{{C_2}}} > {T_{{C_3}}} > {T_{{C_4}}}

Which of the following can be predicted Which of the following statements is incorrect? Among the following metals interatomic forces are probably weakest in: The interaction energy of London forces between two particles is proportional to

{r^x}

, where

r

is the distance between the particles. The value of

x

is In deriving the kinetic equation we make use of the root mean square speed of the molecules which is: Which force is strongest?