For a chemical reaction the enthalpy varies with the progress (Denoted the react

Question

For a chemical reaction the enthalpy varies with the progress (Denoted the reaction coordinate) as shown in the fig below. Two possible reaction paths are shown: What can be said about the reaction? The reaction is endothermic towards the right and path A is catalysed The reaction is endothermic towards the right and path B is catalysed The reaction is exothermic towards the right and path A is catalysed The reaction is exothermic towards the right and path B is catalysed The reaction is neither exothermic or endothermic

Explanation / Answer

Note that Path A requires more energy, so this is clearly not catalysed

for both cases, initial energy is higher than final energy so.... the system loses energy, this must be exothermic

then....

a) false, must be exothermic

b) false, once again exothermic

c) true

d) true

e) false

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.