MCQ
$2$ moles of $PC{l_5}$ were heated in a closed vessel of $2$ litre capacity. At equilibrium, $40\%$ of $PC{l_5}$ is dissociated into $PC{l_3}$ and $C{l_2}$. The value of equilibrium constant is
- ✓$0.266$
- B$0.53$
- C$2.66$
- D$5.3$
$\frac{{2 \times 60}}{{100}}$ $\frac{{2 \times 40}}{{100}}$ $\frac{{2 \times 40}}{{100}}$
Volume of container $= 2$ litre.
${K_c} = \frac{{\frac{{2 \times 40}}{{100 \times 2}} \times \frac{{2 \times 40}}{{100 \times 2}}}}{{\frac{{2 \times 60}}{{100 \times 2}}}} = 0.266$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ Atoms of different elements differ in mass.
$(B)$ Matter consists of divisible atoms.
$(C)$ Compounds are formed when atoms of different element combine in a fixed ratio.
$(D)$ All the atoms of given element have different properties including mass.
$(E)$ Chemical reactions involve reorganisation of atoms.
Choose the correct answer from the options given below :