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Unit 5, Quiz #1

Your first quiz of Unit 5 will be on Tuesday, February 6 and cover material from Chapter 10 of the textbook. Quiz questions will target the following objectives.

  1. The student should be able to distinguish between terms like heat, thermal energy, and temperature and use such terms to appropriately describe heat transfer situations between system and surroundings in light of the zeroeth law of thermodynamics

    Resources: Read Chapter 10.1-2 and 10.5;  Heat and Temperature (p. 1); Chapter 10.1 Reading Guide (p. 2); Chapter 10.2, 5 Reading Guide (pp. 3-4); Lab T1

  2. The student should be able to utilize calorimetric measurements and calculations to determine the quantity of heat transfer (Q) between the surroundings and the system and calculate the heat of reaction in kJ/gram and kJ/mole. (Calorimetry)

    Resources: Read Chapter 10.5;  Chapter 10.2, 5 Reading Guide (pp. 3-4); Calorimetry and Energy Change (pp. 7-8); Labs T2, T4, and T5

  3. The student should understand the concept of an endothermic and exothermic reaction and be able to relate such conceptual understandings to energy level diagrams, the kJ term in a thermochemical reaction, temperature changes of the surroundings; the sign on a ∆H value, and the bond energies of reactants and products. (Endothermic and Exothermic Reactions; ∆H)

    Resources: Read Chapter 10.3-4, 6; Chapter 10.3-4, 6 Reading Guide (pp. 5-6); Energy Change and Reactions (p. 9); Enthalpy Change (p. 10)

  4. The student should be comfortable with the use of a heat of reaction term placed in a thermochemical equation and use the kJ term to relate the quantity of energy released or gained by a system to the mass and the moles of reactants.  (Thermal Stoichiometry)

    Resources: Read Chapter 10.4; Thermal Stoichiometry (pp. 15-16)

  5. The student should understand Hess's Law and be able to use it  (a) to explain why a ∆H for a reaction depends on bond energies and (b) to calculate the heat of reaction for a target reaction from ∆H values of several given reactions. (Hess's Law)

    Resources: Read Chapter 10.7; Chapter 10.7 Reading Guide (p. 17);  Bond Energy and Reactions (pp. 11-14); Hess's Law (pp. 21-22); Lab T6

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