Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energ…
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3. Which of the following reactions is/are exothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH₁º : 2HCl(g) + 185 kJ b. H₂(g) + Cl₂(g) c. 30₂(g) + 286 kJ → 203(g) == - 394 kJ d. N₂(g) + 20₂(g) → 2NO₂(g) AH₁° = +33.2 kJ e. H₂O(s) + heat H₂O(l) f. 238U4He +234Th + heat 4. If the heat of formation of carbon dioxide is -393 kJ/mol, then the heat of reaction for the breakdown of 4 mol of carbon dioxide is approximately a. - 491 kJ b. - 1572 kJ c. - 98 kJ d. +98 kJ e. +1572 kJ f. +491 kJ
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Transcribed Image Text:3. Which of the following reactions is/are exothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH₁º : 2HCl(g) + 185 kJ b. H₂(g) + Cl₂(g) c. 30₂(g) + 286 kJ → 203(g) == - 394 kJ d. N₂(g) + 20₂(g) → 2NO₂(g) AH₁° = +33.2 kJ e. H₂O(s) + heat H₂O(l) f. 238U4He +234Th + heat 4. If the heat of formation of carbon dioxide is -393 kJ/mol, then the heat of reaction for the breakdown of 4 mol of carbon dioxide is approximately a. - 491 kJ b. - 1572 kJ c. - 98 kJ d. +98 kJ e. +1572 kJ f. +491 kJ
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Step 2: IDENTIFYING THE REACTION
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Step 3: IDENTIFYING THE REACTION
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