1. Sulphur (IV) oxide reacts with oxygen to form sulphur (VI) oxide. a) Explain why we can’t assume that the pressure and the temperature of both gases will remain the same during the entire reaction. 2 marksb) Calculate the volume of oxygen required to react completely with 75 L of sulphur (IV) oxide. 3 marksc)Calculate the volume of sulphur (VI) oxide produced. 3marks2. If 250 L of gaseous nitrogen are mixed with 300 L of gaseous hydrogen during a reaction to form gaseous ammonia, a)assuming the reaction is complete, which gas will remain after the reaction, and in which quantity? (See the exercises on balanced equations.) 3 marksb)what volume of gaseous ammonia will be produced? 3 marks3 marksHint: Find which reactant is in excess.2H2O