90 Minutes of Thermochemistry Practice: Heat, Enthalpy, Hess' Law, Calorimetry, Entropy (ΔS) and ΔG5/29/2018 Topics:
Questions: 1. How much heat is required to ... 2. What mass of water can be heated with ... 3. What temperature will it rise to if ... 4. What is the temperature change when ... 5. How much heat is released to the surroundings when ... 6. Find ΔH for the dissolution of potassium chlorate if ... 7. What is the enthalpy of neutralization for this reaction? 8. What happens to Q, ΔT, ΔHrxn if we ...? 9. What is ∆H for (Hess' Law)? 10. Find the enthalpy change for (Hess' Law) 11. Find the enthalpy change for this reaction: 12. Find ΔHfº for C8H18 if.... 13. Write equations for the chemical reactions that ΔHf represents for... 14. Why is ΔHf for liquid water –286 kJ/mol, while ΔHf for water vapour is –242 kJ/mol? 15. Use the bond enthalpies in the table below to estimate ΔH for ... 16. Use bond enthalpies to estimate the ΔH for .... 17. Why are the ΔH values from bond enthalpies called estimates whereas the values from Hess' Law and ΔHf, are more accurate? 18. What mass of water can be melted... 19. What amount of energy is required to heat 200 g of ice at –160ºC to steam at 125ºC ? 20. What are the types of thermal energy present in: 21. Draw a potential energy diagram for each of these reactions 22. Given that NO2 has an enthalpy of formation of +33 kJ/mol: 23. For each of these reactions, is ΔS positive or negative? 24. At what temperature will this reaction become spontaneous? 25. Calculate the value of ΔS Read-only Google Doc: docs.google.com/document/d/1DCicF8MrL5VHx9EpIQ7jnhv0tM1_TES6pl3LDUJCDMk/edit?usp=sharing 
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In this 52-minute video, I do 36 examples of:
Companion Booklet: Read-only Google Doc: https://docs.google.com/document/d/1Ov_Qqv23-dKchShIFxs6RxgEvIK9BigzBE-FZLm25ag/edit?usp=sharing
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