Question

In the reaction ⇌ $+ C l _ { 2 ( g ) }$

The equilibrium concentrations of and $\mathrm { PCl } _ { 3 }$ are 0.4 and 0.2 mole/litre respectively. If the value of $K _ { c }$is 0.5 what is the concentration of in moles/litre.

• A. 2.0
• B. 1.5
• C. 1.0
• D. 0.5

Answer 1

Answer: (C)

1.0

Answer 2

, $x = 1$