Predict the standard cell potential and calculate the standard reaction Gibbs free energy for galvanic cells having the following cell reactions:

Question

2H2+O2=2H2O in acidic solution
2H2+O2=2H2O in basic solution

I understand the idea behind the problem, but I am not sure how the acidity or basicity affects the problem. Thanks.

Answer 1

The E value differs for acid vs basic solution. Look in the reduction potential table for these two values.I don't remember them off hand but I think 0.82 sounds familiar.