The SI unit for energy change in a chemical reaction is:
Correct answer: B. kJ/mole
- A. Joule/mole
- B. kJ/mole
- C. kJ mol
- D. All options are correct.
Explanation
Joule is defined as 1kgm2s-2. Joule is a small quantity of energy, hence chemists usually express it in kJ. For the energy of a given amount, the SI unit are kJ/moles.
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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.
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