Answered: Question 31 of 35 What is K for a…

Question 31 of 35 What is K for a reaction if AG° =-51.2 kJ/mol at 25.00 °C? (R = 8.314 J/mol · K) + 1 4 7 +/- 1.279 2 5 8 ■ 3 6 9 0 Submit X C ×10

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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Identify the bond(s) broken and the bond(s) formed in the reaction shown. Select all that apply. Br +Br₂ → H-Br formed (BDE 368 kJ/mol) C-H broken (BDE 381 kJ/mol) C-H broken (BDE 397 kJ/mol) C-Br formed (BDE 293 kJ/mol) C-Br formed (BDE 285 kJ/mol) C-Br formed (BDE 272 kJ/mol) Br-Br broken (BDE 193 kJ/mol) C-H broken (BDE 435 kJ/mol) HBr
Train track rails are joined using an exothermic welding process. A mixture of iron (III) oxide (Fe2O3), and aluminium metal (Al) is employed and the process is described by the following chemical reaction: Fe₂O3(s) + 2Al(s) → Al₂O3(s) + 2Fe(s) AH (kJ mol-1) c(g-¹ K-1) 0 0.451 Fe(s) Fe₂O3(s) -822.3 0.651 0 0.900 Al(s) Al2O3(s) -1669.8 0.753 a) Calculate the heat released by this process. b) Assuming the reaction goes to completion and that all the heat goes into the final mixture, calculate the final temperature of the products before heat has flowed into the surroundings. Comment on whether the calculated temperature is reasonable. c) Calculate the entropy change for the surroundings once the system and surroundings have equilibrated to the surrounding temperature of 25 °C.
4.5 KJ to cal
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I am having a hard time with this question
also, Change in Gibbs Free energy Reaction Spontaneity
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QUESTION 3 In order to induce precipitation of the salt, you need to add acid to the aqueous solution of the salt gradually heat the aqueous solution of the salt gradually cool the aqueous solution of the salt add base to the aqueous solution of the salt QUESTION 4 Knowing that the Standard Entropies at 25 °C of Ca(OH)2(s). I -53.1 and -10.8 J/mol K, respectively, calculate the AS° for the dissolution of 1 mole of Ca(OH)2 in water at 25 °C: -316.2 J/K 158.1 J/K 316.2 J/K -158.1 J/K Ca2+ (aq) and OH(aq) are 83.4,