The statement: energy of system and surrounding is conserved, is related to which law of thermodynamics?
Correct answer: A. 1st law
- A. 1st law
- B. 2nd law
- C. 3rd law
- D. None of these
Explanation
The first law of thermodynamics, also known as the Law of Energy Conservation, states that energy cannot be created or destroyed; it can only change forms. In other words, the total energy of an isolated system remains constant over time. This means the energy of the system and its surroundings combined is conserved.
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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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