In Standard Enthalpy of Atomization, heat of the surrounding:
Correct answer: D. Decreases
- A. Remains unchanged
- B. Increases
- C. Increases than decreases
- D. Decreases
Explanation
The enthalpy of atomization is the enthalpy change that accompanies the total separation of all atoms in a chemical substance. It is an endothermic process since it takes in energy to 'atomise' hence, decreasing the heat of surrounding.
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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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