Which of the following statement is/are correct about thermochemistry and thermodynamics?
Correct answer: C. Both A and B
- A. The study of heat changes accompanying a chemical reaction is known as thermochemistry
- B. Thermodynamics is a branch of physics that deals with heat, work and temperature
- C. Both A and B
- D. Neither A nor B
Explanation
Option C is correct because both statements A and B are accurate descriptions of thermochemistry and thermodynamics.
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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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