For the disproportionation reaction at 298 K, (where K is the equilibrium constant) is .

Given: , ,

Question

For the disproportionation reaction  at 298 K,  (where K is the equilibrium constant) is .

Given: , ,

Canvas Classes · Accepted Answer

Strategy:
 The equilibrium constant  for a disproportionation reaction can be calculated from the standard cell potential () using the relation .

Step 1: Calculate 
- Cathode (Red): , 
- Anode (Oxid): ,

Step 2: Calculate 
We are given , so .

Value .

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