A) 2.0
B) 1.5
C) 1.0
D) 0.5
Correct Answer: C
Solution :
\[\underset{\begin{smallmatrix} \text{0}\,\text{time}\,\text{1}\,\text{mole} \\ \text{atequili}\,1-x\, \\ \text{brium}\,=0.4 \end{smallmatrix}}{\mathop{PC{{l}_{5}}}}\,\rightleftharpoons \underset{\begin{smallmatrix} 0\,mole \\ \,\,\,\,x \\ \,\,\,0.2 \end{smallmatrix}}{\mathop{PC{{l}_{3}}}}\,+\underset{\begin{smallmatrix} 0\,mole \\ \,\,\,x \\ \,\,\,\,- \end{smallmatrix}}{\mathop{C{{l}_{2}}}}\,\] \[{{K}_{c}}=\frac{[PC{{l}_{3}}][C{{l}_{2}}]}{[PC{{l}_{5}}]}{{K}_{c}}=0.5\] \[0.5=\frac{0.2\times [C{{l}_{2}}]}{0.4}\] \[[C{{l}_{2}}]=\frac{0.4\times 0.5}{0.2}=\text{1}\,\text{mol/L}\]You need to login to perform this action.
You will be redirected in
3 sec