chemical process principle 2

QUESTION 2 (PO1, PO2, CO1, CO2, C2, C4) a. Consider the reactions below: A (9) + 2B (g) C(g) + 3D (1) .....AH, = 1250 kJ (1) 2A (9) + 4B (g) 20(g) + 6D (1) (2) A (I) + 2B (g) C(g) + 3D (1) (3) From the chemical equations given above, i. Referring to chemical equation (1), state whether the equation is exothermic or endothermic. (1 mark) ii. Based on your answer in (i) above, explain the heat of reaction in terms of energy associated with breaking and forming of molecular bonds. (3 marks) iii. Briefly explain how would heat of reaction values for reaction (2) and for reaction (3) differ from the one given for reaction (1). marks)