Question: What does a positive cell potential indicate?
Options:
Spontaneous reaction
Non-spontaneous reaction
Equilibrium
No reaction
Correct Answer: Spontaneous reaction
Solution:
A positive cell potential indicates that the reaction is spontaneous under standard conditions.
What does a positive cell potential indicate?
Practice Questions
Q1
What does a positive cell potential indicate?
Spontaneous reaction
Non-spontaneous reaction
Equilibrium
No reaction
Questions & Step-by-Step Solutions
What does a positive cell potential indicate?
Step 1: Understand what 'cell potential' means. It refers to the voltage produced by a chemical reaction in a cell.
Step 2: Know that a positive cell potential means the voltage is greater than zero.
Step 3: Recognize that a positive voltage indicates that the reaction can occur naturally without needing extra energy.
Step 4: Conclude that when the cell potential is positive, the reaction is spontaneous, meaning it will happen on its own under standard conditions.
Cell Potential – Cell potential, or electromotive force (EMF), is a measure of the driving force behind a redox reaction, indicating whether the reaction can occur spontaneously.
Spontaneity of Reactions – A positive cell potential suggests that the Gibbs free energy change for the reaction is negative, meaning the reaction can proceed without external energy input.
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