NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Application +4 | -1

A vessel is filled with a mixture of

\mathrm{O}_2

and

\mathrm{N}_2

. At what ratio of partial pressures will be the mass of gases be identical

View answer and explanation

Correct option: C

\mathrm{P}_{\left(\mathrm{O}_2\right)}=0.875 \mathrm{P}_{\left(\mathrm{N}_2\right)}

The correct answer is

\mathrm{P}_{\left(\mathrm{O}_2\right)}=0.875 \mathrm{P}_{\left(\mathrm{N}_2\right)}

. This is derived by setting the masses of oxygen and nitrogen equal and using the ideal gas law to relate pressure and moles.

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\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}}}

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r

x