Anything which is under observation or experiment is called:
Correct answer: C. System
- A. Universe
- B. Boundary
- C. System
- D. Surrounding
Explanation
Option C is correct because anything that is under observation is called a system because whatever is in it is carefully observed and recorded.
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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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