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ECAT - Practice Test - Chemistry - Energetics Quiz

Attempt 10 MCQs on ECAT - Practice Test - Chemistry - Energetics | Quiz 4

31. What is enthalpy of atomization?



32. Is ionization energy endothermic or exothermic?



33. Is electron affinity usually exothermic or endothermic?



34. What does -890 kJ/mol for combustion of methane mean?



35. What can Hess's law be used to calculate?



36. What does ΔH_f° = -393.5 kJ/mol for CO₂ mean?



37. What is the reaction for ΔH_f° of H₂O(l)?



38. How do you calculate standard enthalpy of reaction from enthalpies of formation?



39. At constant pressure, what is the enthalpy change equal to?



40. What is the relation between ΔH and ΔU for gas reactions?



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