NEET UG CHEMISTRY MCQ: STATES OF MATTER

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20\,^\circ C

and 1.00 atm partial pressure of hydrogen, 18 mL of hydrogen, measured at STP, dissolves in 1 L of water. If water at

20^\circ C

is exposed to a gaseous mixture having total pressure of 1400 torr (excluding the vapour pressure of water) and containing 68.5%

{H_2}

by volume, find the volume of

{H_2}

, measured at STP, which will dissolve in 1 L of water

View answer and explanation

Correct option: C

23\mathrm{ }\,mL

Option C (

23\mathrm{ }\,mL

) is correct because it is calculated using Henry's Law, considering the partial pressure of hydrogen in the gaseous mixture.

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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}}}

{r^x}

r

x