Cemeles the leExercise 15Date: 79Study the following reactlons and write down, with a reason, whether the reaction isexothermic or endothermic.cCL(G) 2F (g)→ CF,(g) 2CL(g) 752 k]1.112CIF (g) 514 k] Cllg) 3F(g)13CH,OH(G) F(g)- FCH,OH(g) + HF(g) + 476 k]1.4PCL(g) CL(g) → PCL,(9) + 402 k]1.5OF (g) + 368 k] → O(g) • 2F(g)1.64NH,(g) + 70,(g) → 4NO̟(g) • óH,O(g) • 2 428 k]2The following possible values are given for potential energies that are absorbed andreleased respectively for the fictional reaction A B C D.Each time, calculate the energy change for the reaction and also say whether the reactionis exothermic or endothermic.Energy absorbed tobreak bonds (k]•mol)Energy releasedwhen bonds formEnergy change(k] mol")Exothermic/endothermic(kJ•mol")2.1 35042022 87063023 31121124 12322 341

For a exothermic reaction, energy is released. Whereas, energy is absorbed for a endothermic…

Exercise 15 Date: 1 Study the following reactlons and write down, with a reason, whether the reaction is exothermic or endothermie. CCLG) 2F (g)→ CF,(g) 2CL(g) • 752 k] 12 CIF (g) 514 k] Clg) 3F(g) 13 CHOH(G) F(g)-FCH,OH(g) HF(g) + 476 k] PCL(G) Ct(g)PCL(9) + 402 k] 14 15 OF (g) 368 k]→ O(g) • 2F(g) 4NH,(9) + 70,(g) → 4NO,(9) • óH,O(g) + 2 428 k] 1.6 2 The following possible values are given for potential energles that are absorbed and released respectively for the fictional reaction A B C D. Each time, calculate the energy change for the reaction and also say whether the reaction is exothermic or endothermic. Energy absorbed to break bonds (k]J•mol) Energy released when bonds form Energy change (k] mol) Exothermic/ endothermic (kJ•mol") 21 350 420 22 870 630 2.3 311 211 2.4 1232 2 341

Exercise 15 Date: 1 Study the following reactlons and write down, with a reason, whether the reaction is exothermic or endothermie. CCLG) 2F (g)→ CF,(g) 2CL(g) • 752 k] 12 CIF (g) 514 k] Clg) 3F(g) 13 CHOH(G) F(g)-FCH,OH(g) HF(g) + 476 k] PCL(G) Ct(g)PCL(9) + 402 k] 14 15 OF (g) 368 k]→ O(g) • 2F(g) 4NH,(9) + 70,(g) → 4NO,(9) • óH,O(g) + 2 428 k] 1.6 2 The following possible values are given for potential energles that are absorbed and released respectively for the fictional reaction A B C D. Each time, calculate the energy change for the reaction and also say whether the reaction is exothermic or endothermic. Energy absorbed to break bonds (k]J•mol) Energy released when bonds form Energy change (k] mol) Exothermic/ endothermic (kJ•mol") 21 350 420 22 870 630 2.3 311 211 2.4 1232 2 341

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.45PAE: The following equilibrium is established in a closed container: C(s)+O2(g)CO2(g)H=393kJmol1 How does...

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