The net heat change in a chemical reaction is same whether it takes place in one step or more than one is known as
Correct answer: B. Hess' law
- A. Ostwald's law
- B. Hess' law
- C. Joule's principle
- D. 1st law of thermodynamics
Explanation
The statement stated above is the defintion of Hess' Law.
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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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