K_(p) for the reaction N_(2)O_(4)(g) hArr 2NO_(2) (g) is 0.157 atm at 27^(@)C and 1 atm pressure. Calculate K_(c) for the reaction.

K_(p) for the reaction N_(2)O_(4)(g) hArr 2NO_(2) (g) is 0.157 atm at

1.	K_(p) for the reaction N_(2)O_(4)(g) hArr 2NO_(2) (g) is 0.157 atm at 27^(@)C and 1 atm pressure. Calculate K_(c) for the reaction.
Answer» <P> Solution :`DELTA N = n_(p) - n_(r) = 2 - 1 = 1`, `K_(c) = K_(p)//(RT)^(Delta n) = (0.157 " atm)//(0.0821 L "atm" K^(-1) mol^(-1) xx 300 K)^(1) = 6.37 xx 10^(-3) mol L^(-1)`.