How much heat is absorbed when 2.75 mol of C(s) reacts in the presence of excess SO2(g) to produce CS2() and CO(g) according to the following chemical equation? 5 C(s) +2 SO2(g) → CS2(1) + 4 CO(g) O 131.9 kJ O 2158 kJ 239.9 kJ 1199.5 kJ ○ 436.2 kJ AH° = 239.9 kJ A container of water is heated with 10 J of energy at constant pressure. What is the enthalpy change (AH) for this process? O >10 J +10 J -10 J O <10 J O O J

Part 2 The Haber process produces ammonia (NH3) for the chemical industry from nitrogen (N₂) and hydrogen (H₂) as shown in the chemical equation below. This is a reversible reaction. N2 (8) + 3H2(g) → 2NH3 (8) AH = -92 kJ mol-¹ (exothermic) The following questions relate to the effect of changing factors that influence the direction of the above reaction, according to Le Chatelier's principle. For each change in factor (i - iv) listed in the Table, you need to: state the direction of equilibrium, give a reason for your choice, identify if the amount of ammonia produced will increase or decrease. Factor Decrease in concentration of N₂ i) ii) Increase in pressure iii) Increase in temperature iv) A catalyst is added Direction (shift) of equilibrium Scientific explanation for stated direction of equilibrium. Amount of NH3 Increases / decreases Part 3 During this reaction, compromises are made to speed up and maximise the production of ammonia. i) ii) Suggest why a moderate amount of…

Consider the reaction: 4A + B= 2C.        Δ H=-443.6Kj/mol what reaction corresponds to a H of Δ221.8 Kj/mol

The reaction below is a  exothermic or endothermic reaction. 2SO3(g) + Heat ⇋ 2SO2(g) + O2(g)