Four one litre flasks are separately filled with the gases, ${{\rm{O}}_2},{{\rm{F}}_2},{\rm{C}}{{\rm{H}}_4}$ and ${\rm{C}}{{\rm{O}}_2}$ under the same conditions. The ratio of number of molecules in these gases:

NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Four one litre flasks are separately filled with the gases,

{\mathrm{O}_2},{\mathrm{F}_2},\mathrm{C}{\mathrm{H}_4}

and

\mathrm{C}{\mathrm{O}_2}

under the same conditions. The ratio of number of molecules in these gases:

View answer and explanation

Correct option: B

1:1:1:1

Option B (

1:1:1:1

) is correct because, under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules (Avogadro's Law).

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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?