MCQ
$5\, moles$ of $PCl_5$ are heated in a closed vessel of $5\, litre$ capacity. At equilibrium $40\%$ of $PCl_5$ is found to be dissociated. What is the value of $K_c$?
- ✓$0.266\, M$
- B$0.133\, M$
- C$2.5\, M$
- D$0.20\, M$
$\frac{5}{5}\,M$
$1(1 - 0.4)\,M$ $0.4\,M$ $0.4\,M$
$\mathrm{K}_{\mathrm{C}}=\frac{0.4 \times 0.4}{0.6}=\frac{16}{6} \times 10^{-1}=0.266\, \mathrm{M}$
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$KMn{O_4} + {H_2}S{O_4} + {H_2}{O_4} \to {K_2}S{O_4} + MnS{O_4} + {O_2} + {H_2}O$
$(I) HCHO$,
$(II)$ $C{H_3}CHO$,
$(III)$ $C{H_3}COC{H_3}$ is
${C_{\left( s \right)}} + {H_2}{O_{\left( g \right)}} \rightleftharpoons C{O_{\left( g \right)}} + {H_{2\left( g \right)}}$
${H_{2(g)}} + {I_{2(g)}}$ $\rightleftharpoons$ $2H{I_{(g)}}$