Based on Nernst equation, which one of the following statements is true? a. The

Question

Based on Nernst equation, which one of the following statements is true?

a. The galvanic cell potential will increase as temperature increases.

b. The galvanic cell potential will decrease as the reaction proceeds.

c. The galvanic cell potential will increase as reaction proceeds.

d. The galvanic cell potential will increase as the concentration(s) of product(s) increase.

If possible, please provide a detailed solution to accompany your answer.  

a. The galvanic cell potential will increase as temperature increases.

b. The galvanic cell potential will decrease as the reaction proceeds.

c. The galvanic cell potential will increase as reaction proceeds.

d. The galvanic cell potential will increase as the concentration(s) of product(s) increase.

Explanation / Answer

Condensed Nernst equation

Ecell = E°cell - 0.0592/n*LogQ

Full equation

Ecell = E°cell - R*T/(n*F)*LogQ

a. The galvanic cell potential will increase as temperature increases... False since it will be substracted from the E°Cell

b. The galvanic cell potential will decrease as the reaction proceeds.... True, since Q increases, and then it is substracted

c. The galvanic cell potential will increase as reaction proceeds. False, because you are consuming reactants, there will be less "potential" of electricity

d. The galvanic cell potential will increase as the concentration(s) of product(s) increase. False, since then Q increases ,which makes log Q increase, then it substracts from E°Cell

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