Which of the following may depend on the path of reaction?
Correct answer: A. Energy of activation
- A. Energy of activation
- B. Enthalpy of reaction
- C. Internal energy change
- D. Change in temperature
Explanation
Energy of activation is the minimum amount of energy reactants must have to form products. It is the only one that is dependent on the path of reaction. The path of reaction determines the number of intermediates that will form. Greater the number of intermediates more will be the activation energy. On the other hand, the enthalpy of the reaction, internal energy change and change in temperature are all state reactions. They are dependant on the final and the initial values of the system.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
Practise Thermochemistry and Energetics of Chemical Reactions
728 free Thermochemistry and Energetics of Chemical Reactions MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Thermochemistry and Energetics of Chemical Reactions questions
By definition, the standard heat of formation of C2H6(g) is the enthalpy change for the reaction:
Heat capacity depends on:
∆Hr of compound is:
Which equation represents Enthalpy of formation of NaCI?
The enthalpy of formation of MgO is_kJ/mol.
If an exothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air: