question 10 of 25\nwhich energy profile best shows that the enthalpy of formation of cs₂ is 89.4 kj/mol?\na…
question 10 of 25\nwhich energy profile best shows that the enthalpy of formation of cs₂ is 89.4 kj/mol?\na. energy profile b\nb. energy profile c\nc. energy profile d\nd. energy profile a
Answer
Explanation:
Step1: Understand endothermic reaction
An enthalpy of formation of 89.4 kJ/mol is positive, indicating an endothermic reaction. In an endothermic reaction, the products have higher energy than the reactants.
Step2: Analyze energy - profiles
Energy - profile A is a typical endothermic reaction profile where the energy of the products is higher than that of the reactants. Profile B is an exothermic reaction (products have lower energy). Profile C is a reaction with an intermediate and overall energy change is not consistent with endothermic nature for formation. Profile D is not a typical formation - reaction profile as it has a decrease in energy after the peak which is not relevant for a simple formation reaction.
Answer:
D. Energy profile A