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_5` will be produced
D. None of these

Answer

C

Explanation

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