NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Analyzing +4 | -1

When a sample of gas is compressed at constant temperature from 15 atm to 60 atm, its volume changes from

76\,\,\mathrm{c}{\mathrm{m}^3}\,\,\mathrm{to}\,\,20.5\,\,\mathrm{c}{\mathrm{m}^3}

. Which of the following statements are possible explanations of this behaviour? 1. The gas behaves non-ideally. 2. The gas dimerises. 3. The gas is absorbed into the vessel walls.

View answer and explanation

Correct option: D

1\mathrm{ }\,only

Option D (

1\mathrm{ }\,only

) is correct because the observed volume change deviates from ideal gas behavior, indicating non-ideality.

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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?