What is the pressure of 2 moles of $N{H_3}$ at $27^\circ C$ when its volume is 5 L in van der Waals’ equation $\left( {a = 4.17,b = 0.03711} \right)$

NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Application +4 | -1

What is the pressure of 2 moles of

N{H_3}

27^\circ C

when its volume is 5 L in van der Waals’ equation

\left( {a = 4.17,b = 0.03711} \right)

View answer and explanation

Correct option: B

9.33 atm

Option A (10.33 atm) is correct because it is calculated using the van der Waals equation with the given parameters.

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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