Which one is true about spontaneous reactions
Correct answer: A. Unidirectional
- A. Unidirectional
- B. Reversible process
- C. Non-real process
- D. All of these
Explanation
Spontaneous reactions proceed in one direction only, from reactants to products, without the need for external intervention once initiated. These reactions occur naturally under specific conditions and result in a decrease in free energy, making them energetically favorable. The direction of spontaneous reactions is determined by factors such as the change in enthalpy (ΔH) and entropy (ΔS), as well as temperature, pressure, and concentration.
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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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