question_answer

The equilibrium \[2S{{O}_{2(g)}}+{{O}_{2(g)}}\]\[\rightleftharpoons \]\[2S{{O}_{3(g)}}\] shifts forward, if

A) A catalyst is used

B) An adsorbent is used to remove \[S{{O}_{3}}\] as soon as it is formed

C) Low pressure

D) Small amounts of reactants are used