For the reaction `CH_(4(g))+2O_(2(g))hArrCO_(2(g))+2H_(2)O_(l)`:
(`DeltaH=-170.8 kJmol^(-1)`). Which of the following statement is not true?

Options

A. Addition of `CH_(4(g))` or `O_(2(g))` at equilibrium will cause a shift to right
B. The reaction is exothermic
C. At equilibrium , the concentration of `CO_(2(g))` and `H_(2)O_(l)` are not equal
D. The equilibrium constant for the reaction is given by `K_(p)=([CO_(2)])/([CH_(4)][O_(2)]^(2))`

Explanation

`K_(p)=(P_(CO_(2)))/((P_(CH_(4)))(P_(O_(2)))^(2))`