Base your answer on the information below and on your knowledge of chemistry. Nitrogen dioxide, NO₂, is a dark brown gas that is used to make nitric acid and to bleach flour. Nitrogen dioxide has a boiling point of 294 K at 101.3 kPa. In a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, N₂O₄. This equilibrium is represented by the equation below. State one stress, other than adding or removing NO₂(g) or N₂O₄(g), that would increase the amount of the dark brown gas.