Consider the reaction where , `K_P = 0.5 ` at a particular temperature
`PCl_(5)(g) hArr PCl_3 (g) + Cl_2 (g)`
if the three gases are mixed in a container so that the partial pressure of each gas is initially 1 atm, then which one of the following is true.

Options

A. more `PCl_3` will be produced
B. more `Cl_2` will be produced
C. more `PCl_3` will be produced
D. none of these

Answer

C

Explanation

`K_P = 0.5`
`Q=(P_(PCl_3) * P_(Cl_2))/(P_(PCl_5))`
`Q= (1xx1)/1`
`Q gt K_p`
`therefore ` Reverse reaction is favoured , i.e. more `PCl_5` will be produced.