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Round 2! Double Jeopardy

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Calorim- etry Energy Changes in Heat Vocab Thermo Fun 100 200 300 400 500 FJ

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Calorimetry for 100 Question: What is the system in this example? Check Your Answer H2OH2O NaOH

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Calorimetry for 100 Answer: NaOH Back to Game Board NaOH

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Calorimetry for 200 Question: Heat lost by the system is equal to what? Check Your Answer

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Calorimetry for 200 Answer: Heat gained by the surroundings Back to Game Board

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Calorimetry for 300 Question: What is wrong with this calorimeter? Check Your Answer

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Calorimetry for 300 Answer: no cover – losing heat to the environment! Back to Game Board

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Calorimetry for 400 Question: What is/are the surrounding(s) in this example? Check Your Answer

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Calorimetry for 400 Answer: Water (and everything else except the metal!) Back to Game Board

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Calorimetry for 500 Question: What law explains the basis for calorimetry? Check Your Answer

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Calorimetry for 500 Answer: Law of Conservation of Energy Back to Game Board

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Energy for 100 Question: What type of energy is stored in the bonds of a substance? Check Your Answer

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Energy for 100 Answer: Chemical potential energy Back to Game Board

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Energy for 200 Question: Which has the most thermal energy? ( all contain H 2 O ) Check Your Answer

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Energy for 200 Answer: B, most mass and highest temperature Back to Game Board

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Energy for 300 Question: A 30.0 g piece of metal gives off 250. J as it cools down 35.0 o C. What is the specific heat of the metal? Check Your Answer

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Energy for 300 Answer: 0.238 J/g o C Back to Game Board

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Energy for 400 Question: What is the term for the measure of the average kinetic energy of a substance? Check Your Answer

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Energy for 400 Answer: Temperature Kinetic energy = energy of motion Back to Game Board

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Energy for 500 Question: Convert this energy to joules. Check Your Answer 440. Calories

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Energy for 500 Answer: 1.84 x 10 6 J Back to Game Board

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Changes in Heat for 100 Question: Is this process endothermic or exothermic: Water vapor in the air condenses on the outside of a glass of iced tea. Check Your Answer

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Changes in Heat for 100 Answer: Exothermic Back to Game Board Heat is released Ice Lab!

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Changes in Heat for 200 Question: What is the term for energy transferred between objects because of a difference in temperature? Check Your Answer

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Changes in Heat for 200 Answer: Heat Back to Game Board

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Changes in Heat for 300 Check Your Answer Question : Calculate the amount of heat required in kilojoules to boil 50.0g of water at its boiling point.

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Changes in Heat for 300 Answer: 113 kJ Back to Game Board

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Changes in Heat for 400 Question: A 20.0g sample of water at 250. K is mixed with 35.0g of water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. Check Your Answer

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Changes in Heat for 400 Answer: 288K Back to Game Board

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Changes in Heat for 500 Question: How much heat does a metal lose when it is heated and then submerged in 150. g of cool water, and the temperature of the water increases by 3.80 o C assuming no heat loss to the surroundings? Check Your Answer

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Changes in Heat for 500 Answer: 2380 J Back to Game Board

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Vocab for 100 Question: What is the name for this piece of equipment? Check Your Answer

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Vocab for 100 Answer: Calorimeter Back to Game Board

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Vocab for 200 Question: What is the term for the amount of heat need to raise the temperature of an object by 1 o C? Check Your Answer

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Vocab for 200 Answer: heat capacity Back to Game Board

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Vocab for 300 Question: What is the term for the heat content of a system at constant pressure? Check Your Answer

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Vocab for 300 Answer: Enthalpy ( H ) Back to Game Board

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Vocab for 400 Question: What does ΔH f stand for? Check Your Answer

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Vocab for 400 Answer: Standard heat of formation Back to Game Board

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Vocab for 500 Question: What is the term that means the energy required to boil one mole of a substance at its boiling point? Check Your Answer

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Vocab for 500 Answer: Molar heat of vaporization, ΔH vap Back to Game Board

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Thermo Fun for 100 Question: What are standard conditions for a thermochemical equation? Check Your Answer

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Thermo Fun for 100 Answer: 25 o C and standard pressure (1 atm) Back to Game Board

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Thermo Fun for 200 Question: Write the complete thermochemical equation for the formation of carbon monoxide gas. Check Your Answer

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Thermo Fun for 200 Answer: C(s) + ½ O 2 (g) CO(g) Δ H = -110.5 kJ/mol Back to Game Board

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Thermo Fun for 300 Question: Find the ΔH for this reaction using Hesss Law: H 2 CO 3 (g) H 2 O (g) + CO 2 (g) Δ H =? H 2 CO (g) + O 2 (g) H 2 CO 3 (g) Δ H =-252.0 kJ H 2 O (g) + CO 2 (g) H 2 CO (g) + O 2 (g) Δ H =112.5 kJ Check Your Answer

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Thermo Fun for 300 Answer: H 2 CO 3 (g) H 2 CO (g) + O 2 (g) Δ H =+252.0 kJ H 2 CO (g) + O 2 (g) H 2 O (g) + CO 2 (g) Δ H =-112.5 kJ H 2 CO 3 (g) H 2 O (g) + CO 2 (g) Δ H =139.5kJ Back to Game Board

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Thermo Fun for 400 Question: How much heat is absorbed when 15.0 g of NH 4 NO 3 are dissolved in water? NH 4 NO 3 (s) NH 4 + (aq) + NO 3 - (aq) H soln = 25.7 kJ/mol Check Your Answer

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Thermo Fun for 400 Answer: 4.82 kJ Back to Game Board

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Thermo Fun for 500 Check Your Answer Question: It takes 153.9 J to raise the temperature of 25.75 g of iron from 25.0 o C to 38.3 o C. Calculate the molar heat capacity.

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Thermo Fun for 500 Answer: 25.1 J/mol o C Back to Game Board

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Final Category Heat in Changes of State

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Final Question Question: How many kilojoules are required to heat 10.0 grams of water from 10.0 o C to 110. o C? Answer C ice = 2.03 J/g o C C steam = 2.02 J/g o C

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Final Answer Answer: 26.6 kJ Back to Game Board start end A C B + +

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