ΔH is the difference in the number of moles of reactants and products in a reaction which is _.
Correct answer: C. Gaseous phase
- A. Solid phase
- B. Liquid phase
- C. Gaseous phase
- D. Plasma phase
Explanation
∆n is equal to the total moles of gas on the products side - total moles of gas on the Reactant side. The reaction must be in a gaseous phase.
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About Enthalpy
Enthalpy is the heat content of a system measured at constant pressure, and its change indicates whether a reaction or physical process is endothermic or exothermic. The topic covers state functions, enthalpy diagrams, standard enthalpy of formation, combustion and neutralisation, and the relationship between ΔH and internal energy change.
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