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Thermochem Jeopardy

Thermochem Jeopardy. Specific Heat & Calorimetry. Unit Conversions. Vocab. Exo /Endo. Miscellaneous. Q $100. Q $100. Q $100. Q $100. Q $100. Q $200. Q $200. Q $200. Q $200. Q $200. Q $300. Q $300. Q $300. Q $300. Q $300. Q $400. Q $400. Q $400. Q $400. Q $400. Q $500.

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Thermochem Jeopardy

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  1. Thermochem Jeopardy Specific Heat & Calorimetry Unit Conversions Vocab Exo/Endo Miscellaneous Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $200 Q $300 Q $300 Q $300 Q $300 Q $300 Q $400 Q $400 Q $400 Q $400 Q $400 Q $500 Q $500 Q $500 Q $500 Q $500 Final Jeopardy

  2. $100 Answer from Exo vs. Endo Is the reaction below endothermic or exothermic? NaOH (s) + H2O (l)  NaOH(aq) + heat

  3. $100 Answer from Exo/Endo exothermic

  4. $200 Question from Exo/Endo Given the thermochemical equation below, is the reaction exo or endothermic? 4 NO(g) + 6 H2O(l)  4 NH3(g) + 5 O2(g) ΔH = +1170 kJ

  5. $200 Answer from Exo/Endo endothermic

  6. $300 Question from Exo/Endo If a system is getting cooler and the surroundings are getting warmer, is this an exothermic or endothermic reaction?

  7. $300 Answer from Exo/Endo exothermic

  8. $400 Question from Exo/endo Is this energy diagram below depicting an exothermic or endothermic reaction?

  9. $400 Answer from Exo/Endo endothermic

  10. $500 Question from Exo/Endo 2 S(s) + 2 O2 (g) ---> 2 SO2 (g)ΔH = -592 kJ Based on the reaction above, would the reactants or products have a higher energy? (Hint: think about the enthalpy diagram)

  11. $500 Answer from Exo/Endo Reactants have higher energy in an exothermic reaction

  12. $100 Question from Unit Conversions 257 kJ = __________ J

  13. $100 Answer from Unit Conversions 257,000 J

  14. $200 Question from Unit Conversions 2200 calories = ________ Calories

  15. $200 Answer from Unit Conversions 2.2 Calories

  16. $300 Question from Unit Conversions 134 J = ____________ cal

  17. $300 Answer from Unit Conversions 32.03 cal

  18. $400 Question from Unit Conversions 62 kcal = _____________ J

  19. $400 Answer from Unit Conversions 259,408 J

  20. $500 Question from Unit Conversions 11.4 kJ = ___________ Cal

  21. $500 Answer from Unit Conversions 2.72 Cal

  22. $100 Question from Vocab The part of the universe on which you focus your attention

  23. $100 Answer from Vocab system

  24. $200 Question from Vocab The study of heat changes in chemical reactions

  25. $200 Answer from Vocab thermochemistry

  26. $300 Question from Vocab The ability to do work or supply heat; units may be in joules or calories

  27. $300 Answer from Vocab Energy

  28. $400 Question from Vocab Energy that is transferred from one object to another because of a difference in temperature between them

  29. $400 Answer from Vocab heat

  30. $500 Question from Vocab The amount of heat it takes to raise 1 gram of a substance 1ᵒC

  31. $500 Answer from Vocab Specific Heat

  32. $100 Question from Specific Heat & Calorimetry How much heat is generated when 15 g of Aluminum (specific heat of 0.90 J/gᵒC) cools down from 67ᵒC to 29ᵒC?

  33. $100 Answer from Specific Heat & Calorimetry - 513 J

  34. $200 Question from Specific Heat & Calorimetry How much energy, in calories, is required when 74 g of water (specific heat of 4.184 J/gᵒC or 1.0 cal/gᵒC) is heated 38ᵒC?

  35. $200 Answer from Specific Heat & Calorimetry 2812 calories

  36. $300 Question from Specific Heat & Calorimetry It takes 487.5 J to heat 25 grams of copper from 25 °C to 75 °C. What is the specific heat in Joules/g·°C?

  37. $300 Answer from Specific Heat & Calorimetry 0.39 J/g·°C

  38. $400 Question from Specific Heat & Calorimetry In calorimetry, what is the job of the calorimeter and how does it accomplish this?

  39. $400 Answer from Specific Heat & Calorimetry The calorimeter must MAINTAIN all of the heat transferred between the system and the surroundings. It must be INSULATED to ensure that not heat is lost to the outside world

  40. $500 Question from Specific Heat & Calorimetry A 0.500 g sample of TNT (C7H5N2O6) is burned in a calorimeter containing 610 grams of water. The temperature of the water rises from 20.0ºCto 177ºC. (specific heat of 4.184 J/gᵒC or 1.0 cal/gᵒC) What is the heat (in J) LOST by the TNT?

  41. $500 Answer from Specific Heat & Calorimetry - 400,701.7 J

  42. $100 Question from Misc. Which region of the curve represents freezing?

  43. $100 Answer from Misc. Region B

  44. $200 Question from Misc. Heat always flows from the _________ object to the _________ object.

  45. $200 Answer from Misc. Warmer, cooler

  46. $300 Question from Misc. 2 C2H2 (g) + 5 O2 (g) 4 CO2 (g) + 2 H2O(l) ΔH = -2598.8 kJ Given the reaction above, how much heat (in kJ) would be released when 3.2 moles of oxygen gas are used?

  47. $300 Answer from Misc. -1663.2 kJ

  48. $400 Question from Misc. Which letter, will correspond on the y-axis to the boiling point of the substance in the heating curve below?

  49. $400 Answer from Misc. Letter D

  50. $500 Question from Misc. Based upon the thermochemical equation given, calculate the heat (in Joules) associated with the production of 1.15 g of NO2 (g). N2 (g) + 2 O2 (g)2 NO2 (g) ΔH = +67.6 kJ

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