What is the value of ΔGo in kJ at 25 oC for the reaction between the pair: Br2(l) and Cl-(aq) Use the reduction potential values for Br2(l) of +1.07 V and for Cl2(g) of +1.36 V Give your answer using E-notation with ONE decimal place (e.g., 2.1 x 10-2 would be 2.1E-2; and 2.12 x 10-2 would also be 2.1E-2.).
Br2 + 2e- --------> 2Br- E0 = 1.07ev
Cl2 +2e- -----------> 2Cl- E0 = 1.36ev
2Br- -----------------------> Br2 + 2e- E0 = -1.07ev
Cl2 + 2e- ------------------> 2Cl- E0 = 1.36ev
------------------------------------------------------------------------------
2Br- + Cl2 ----------------> Br2 + 2Cl- E0cell = 0.29ev
ΔGo = -nE0cell *F
= -2*0.29*96500 = -55970J = -5.5970*104 J = 5.5970*101 KJ
Get Answers For Free
Most questions answered within 1 hours.