question_answer

For the reaction: \[C{{H}_{4}}(g)+2{{O}_{2}}(g)\rightleftharpoons \,\,C{{O}_{2}}(g)+2{{H}_{2}}O(l)\] \[{{\Delta }_{r}}H\,\,\,=\,\,-170.8\,\,kJ\,\,mo{{l}^{-1}}\] Which of the following statements is not true-

A) At equilibrium, the concentrations of \[C{{O}_{2}}\left( g \right)\] and \[{{H}_{2}}O\left( l \right)\] are not equal

B) The equilibrium constant for the reaction is given by \[{{K}_{p}}\,=\,\,\frac{\left[ C{{O}_{2}} \right]}{\left[ C{{H}_{4}} \right]\left[ {{O}_{2}} \right]}\]

C) Addition of \[C{{H}_{4}}\left( g \right)\] or \[{{O}_{2}}\left( g \right)\] at equilibrium will cause a shift to the right

D) The reaction is exothermic