Question

17. Convert the Keqi and Keq2 in the previous question to ΔGo, find the ΔGo of the overall reactions, then convert the AGo overall to Keqoverall. Your two answer(s) should be equal. Siinpじ 2 d HA 16. Given the two known reactions, find the Keq of the overall reaction: Overall: Keqー? kJ mol Known 1: 2A ㈠C eq1 Known 2: C㈠4B mol

Answer 1

16.

Overall equation is A <--> 2 B Keq is given by eq[A Known:1: Keal 10 1 C<--> 4 B Known:2: 15 ey2 [C] x[B]-=10x15 eg1 a[A] [C] [BI eg1 take square root on both sides = 12.24745 [A 12.25 K

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17.

Known: 1 >C Keq1-10 ΔG。,--RT In Keq1--8.3 14 /(molK) * 298 K * ln(10) :5704.82 J/mol Known: 1: AG2-RT InKed2-8.314 J/(mol.K) * 298 K * In(15) 6709.389 J/mol Combine: ΔG°1 + ΔG。,-5704.82 + 6709.389 2 A < A < > 4 B > 2 B ΔG ΔG= 12414.21 /2 = 6207.105 J/mol 12414.21 For 6207.105 J/mol ΔG overall ΔGoverall 8.3141/(molK) * 298 K * In Keq 6207. 105 J/mol-=-8. 314 J/(moLK) * 298 K * In Keq In Keg 2.505318 Keq exp(2.505318)-12.24745 -12.25