consider the reaction
2SO2 + O2 <---> 2SO3
A SHIFTS TO THE LEFT
B SHIFTS TO THE RIGHT
C NO CHANGE
ADDITIONAL SO2 IS INJECTED INTO REACTION VESSEL
I PICKED B
SOME SO3 IS REMOVED FROM THE REATION VESSEL
I PICKED B AGAIN
THE SIZE OF THE REACTION VESSEL IS DECREASED
NOT SURE B...