NEET UG CHEMISTRY MCQ: STATES OF MATTER

1 Easy

1 of 1

Application +4 | -1

Equal moles of

{H_2}

and

{O_2}

gases are placed in a container with a pin hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the

{H_2}

to escape

View answer and explanation

Correct option: A

\frac{1}{8}

Option A (

\frac{1}{8}

) is correct because the rate of effusion is inversely proportional to the square root of the molar mass, and the amount escaped is proportional to the rate.

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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?