PYQ NEET- रासायनिक संतुलन-1 L-2
प्रश्न: $ A 20 litre container at $400 \mathrm{~K}$ contains $\mathrm{CO}_2(g)$ at pressure $0.4 \mathrm{~atm}$ and an excess of $\mathrm{SrO}$ (neglect the volume of solid $\mathrm{SrO}$ ). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of $\mathrm{CO}_2$ अपने अधिकतम मान प्राप्त करेगा, तो
(दिया गया है कि:
$$
\begin{array}{r}
\mathrm{SrCO}_3(\mathrm{~s}) \rightleftharpoons \mathrm{SrO}(\mathrm{s})+\mathrm{CO}_2(\mathrm{~g})_1 \
\left.\mathrm{~K}_p=1.6 \mathrm{~atm}\right)
\end{array}
$$
A) $5 \mathrm{~L}$
B) $10 \mathrm{~L}$
C) $4 \mathrm{~L}$
D) $2 \mathrm{~L}$
उत्तर: $5 \mathrm{~L}$
समाधान:
प्रतिक्रिया के लिए,
$$
\begin{aligned}
& \mathrm{SrCO}_3(s) \rightleftharpoons \mathrm{SrO}(s)+\mathrm{CO}_2(q), \
& \mathrm{K}p=1.6 \mathrm{~atm}=p{\mathrm{CO}_2}=\text { maximum }
\end{aligned}
$$
$\mathrm{CO}_2$ का दबाव
दिया गया है,
$$
\begin{aligned}
& p_1=0.4 \mathrm{~atm}, V_1=20 \mathrm{~L}, T_1=400 \mathrm{~K} \
& p_2=1.6 \mathrm{~atm}, V_2=?, T_2=400 \mathrm{~K}
\end{aligned}
$$
स्थिर तापमान पर,
$p_1 V_1=p_2 V_2$
$$
\begin{aligned}
0.4 \times 20 & =1.6 \times V_2 \
V_2 & =\frac{0.4 \times 20}{1.6}=5 \mathrm{~L}
\end{aligned}
$$
BETA
