NEET UG CHEMISTRY MCQ: STATES OF MATTER

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700 \mathrm{~K}

, equilibrium is established between molecular deuterium and atomic deuterium as follows.

\mathrm{D}_2 \rightleftharpoons 2 \mathrm{D}

It was found that, at a pressure of 100 torr and

700 \mathrm{~K}

temperature, the equilibrium mixture effuses through a pin hole 1.1 times as fast as helium (under similar temperature and pressure conditions).
The percentage of

D_2

molecules dissociated into ions is

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Correct option: A

The correct answer is 21. The percentage of D2 molecules dissociated into ions is calculated using Graham's law of effusion and the average molar mass of the mixture.

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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?