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1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH,= -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. AH = +33.2 kJ 30,(g) + 286 kJ → 20,(g) d. N₂(g) + 20₂(g) → 2NO(g) H₂O(s) + heat H₂O(1) 2U-"He + 24Th + heat e. 1 f.

1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH,= -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. AH = +33.2 kJ 30,(g) + 286 kJ → 20,(g) d. N₂(g) + 20₂(g) → 2NO(g) H₂O(s) + heat H₂O(1) 2U-"He + 24Th + heat e. 1 f.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH, = -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. 30₂(g) + 286 kJ 20,(g) 1 d. N₂(g) + 20₂(g) → 2NO₂(g) AH = +33.2 kJ e. - H₂O(s) + heat H₂O(1) f. 238 U "He + 234Th + heat 4. If the heat of formation of carbon dioxide is -393 kJ/mol, then the heat of reaction for the breakdown of 1.25 mol of carbon dioxide is approximately a. -491 kJ d. +314 kJ b. -393 kJ e. +393 kJ 6. - 314 KJ f. +491 kJ 5. A 6.00-g candle is consumed in heating 45.0 g of water from 19.0°C to 32.0°C. If you ignore loss of heat to the air, the energy produced per gram of candle would be approximately a. 183 J d. 732 J b. 408 J e. 2450 J C. 512 J f. None of the above
Transcribed Image Text:1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH, = -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. 30₂(g) + 286 kJ 20,(g) 1 d. N₂(g) + 20₂(g) → 2NO₂(g) AH = +33.2 kJ e. - H₂O(s) + heat H₂O(1) f. 238 U "He + 234Th + heat 4. If the heat of formation of carbon dioxide is -393 kJ/mol, then the heat of reaction for the breakdown of 1.25 mol of carbon dioxide is approximately a. -491 kJ d. +314 kJ b. -393 kJ e. +393 kJ 6. - 314 KJ f. +491 kJ 5. A 6.00-g candle is consumed in heating 45.0 g of water from 19.0°C to 32.0°C. If you ignore loss of heat to the air, the energy produced per gram of candle would be approximately a. 183 J d. 732 J b. 408 J e. 2450 J C. 512 J f. None of the above
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