PRACTICE Which of the following is not a state function A Pressure B

Practice which of the following is not a state

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PRACTICE: Which of the following is not a state function? A. Pressure B. Concentration C. Internal energy D. Work * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 38
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HUNTER - GENERAL CHEMISTRY 1 - PROF. KOBKO-LITSKEVITCH HUNTER PROF. KOBKO-LITSKEVITCH EXAM 1 REVIEW* PRACTICE: The internal energy of a system is the sum of all of its ___. A. thermal energy and kinetic energy B. potential energy and chemical energy C. thermal energy and chemical energy D. potential energy and kinetic energy PRACTICE: Which set of signs for q and w represent a system that is doing work on the surroundings and losing heat to the surroundings? a) -q, -w b) +q, +w c) -q, +w d) +q, -w e) None of these represent the system referenced above. * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 39
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HUNTER - GENERAL CHEMISTRY 1 - PROF. KOBKO-LITSKEVITCH HUNTER PROF. KOBKO-LITSKEVITCH EXAM 1 REVIEW* PRACTICE: Consider the following reaction: C 12 H 22 O 11 (s) + 12 O 2 (g) 13 CO 2 (aq) + 11 H 2 O (l) in which 25.0 g of sucrose, C 12 H 22 O 11 , was burned in a bomb calorimeter with a heat capacity of 8.30 kJ / °C . The temperature inside the calorimeter increases by 27.0 °C. Calculate the change in internal energy, ΔE , for the reaction per mole of sucrose. PRACTICE: Thermal energy is a type of which of the following energies? A. Exchange energy B. Chemical energy C. Potential energy D. Kinetic energy * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 40
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HUNTER - GENERAL CHEMISTRY 1 - PROF. KOBKO-LITSKEVITCH HUNTER PROF. KOBKO-LITSKEVITCH EXAM 1 REVIEW* PRACTICE: A system releases 415 kJ of heat and does 125 kJ of work on the surroundings. What is the change in internal energy of the system? PRACTICE: When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.255 L to 1.45 L against an external pressure of 1.02 atm. In addition, 875 J is emitted as heat. What is the ΔE? (101.3 J = 1 L • atm) * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 41
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HUNTER - GENERAL CHEMISTRY 1 - PROF. KOBKO-LITSKEVITCH HUNTER PROF. KOBKO-LITSKEVITCH EXAM 1 REVIEW* SUMMARY: Exothermic & Endothermic Reactions PRACTICE: A reaction under certain conditions has an enthalpy change of ΔH = −118 kJ. This means that 118 kJ of heat would be liberated 1. if the reaction were carried out at constant pressure. 2. if the reaction were carried out at constant concentrations. 3. no matter how the reaction were carried out. 4. if the reaction were carried out in any type of calorimeter. 5. if the reaction were carried out at constant volume. * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 42
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HUNTER - GENERAL CHEMISTRY 1 - PROF. KOBKO-LITSKEVITCH HUNTER PROF. KOBKO-LITSKEVITCH EXAM 1 REVIEW* PRACTICE: When 1.550 g of liquid hexane (C 6 H 14 ) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 to 38.13 °C. Find the ΔE rxn in kJ/mol of hexane. The heat capacity of the bomb calorimeter was found in a different experiment to be 5.73 kJ/°C.
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