For the reaction : `2NO_(2(g)) hArr 2NO_(g)+O_(2)(g)`,
`(K_(e )=1.8xx10^(-6) " at " 184^(@)C) (R=0.0831 kJ//("mol" K))`
When `K_(P) and K_(e )` are compared at `184^(@)C`, it is found that

Options

A. Wheater `K_(p)` is greater than, less than or equal to `K_(e )` depends upon the total gas pressure
B. `K_(p)=K_(e )`
C. `K_(p)` is less than `K_(e )`
D. `K_(p) ` is greaterthan `K_(e )`

Answer

D

Explanation

For the reaction `2NO_(2)(g) hArr 2NO (g)+O_(2)(g)`
given `K_(e )=1.8xx10^(-6) at 184^(@)C`
R=0.0831 Kj/mol K
`K_(p)=1.8xx10^(-6)xx0.0831xx457=6.836xx10^(-6)`
`[because 184^(@)C=(273+184)=457k, Delta n =(2+1,-1)=1]`
Hence it is clear that `K_(p) gt K_(e )`