Construct a galvanic (voltaic) cell from the half reactions shown below.Br2 (l) + 2 e- ? 2 Br- (aq) ?o= 1.087 VCu2+ (aq) + 2 e-? Cu (s) ?o= 0.340 VCalculate the equilibrium constant (K) for this cell. Assume that the temperature is 298K.First, consider what happens to the Nernst equation when the system reaches equilibrium:? = ?o - (RT/nF) ln QWhat is ? when the system has reached equilibrium? Is there any driving force left?Remember that ?G = -nF?.At equilibrium, ?G = 0, so ? = 0, too.At equilibrium, Q = K, since all reactants and products are present at their equilibrium concentrations.This simplifies the Nernst equation to:?ocell = [(RT)/nF] ln KNow calculate a value for K.You may need to use scientific notation to record your answer. If so, enter it as: 4E43 which is equivalent to 4x1043
Construct a galvanic (voltaic) cell from the half reactions shown below.Br2 (l) + 2 e- ? 2 Br- (aq) ?o= 1.087 VCu2+ (aq) + 2 e-? Cu (s) ?o= 0.340 VCalculate the equilibrium constant (K) for this cell. Assume that the temperature is 298K.First, consider what happens to the Nernst equation when the system reaches equilibrium:? = ?o - (RT/nF) ln QWhat is ? when the system has reached equilibrium? Is there any driving force left?Remember that ?G = -nF?.At equilibrium, ?G = 0, so ? = 0, too.At equilibrium, Q = K, since all reactants and products are present at their equilibrium concentrations.This simplifies the Nernst equation to:?ocell = [(RT)/nF] ln KNow calculate a value for K.You may need to use scientific notation to record your answer. If so, enter it as: 4E43 which is equivalent to 4x1043
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