Question

3.Classify each reaction as exothermic or endothermic. (4 marks) a.Energy + SO2(g) S(g) + O2(g) _________________________________b.Draw a potential energy diagram for the reaction above:

Answer 1

Step-by-step explanation:

a) Here, we want to get the class of the reaction

An endothermic reaction absorbs energy from the surroundings and as such, the change in enthalpy value is positive

This can be deduced from the position of energy in the chemical equation. Since it is added to the reactant side, it is for an endothermic reaction

b) Here, we want to draw a potential energy diagram for the reaction

We have this as follows: