In an endothermic reaction, dinitrogen tetroxide decomposes to form nitric oxide. If the two substances were in equilibrium [ee-kwuh-LIB-ree-uhm] in a piston, identify all of the following three conditions that would lead to the generation of more nitric oxide: 1) pressure is removed from the system; 2) the temperature of the reaction is increased; 3) more dinitrogen tetroxide is added to the system.