Understanding the Nernst Equation

What is the primary purpose of the Nernst Equation?

• To measure temperature changes in reactions

• To determine the equilibrium constant

• To calculate non-standard cell potentials

• To calculate standard cell potentials

Which constant is represented by 'R' in the Nernst Equation?

• Faraday's Constant

• Universal Gas Constant

• Boltzmann's Constant

• Planck's Constant

What is the value of the constant derived from 8.314 J/Mol K times 298 K divided by 96,500 C/Mol of electrons?

• 96,500

• 0.0592

• 0.0257

• 2.303

Why were log base 10 used historically in the Nernst Equation?

• They are more accurate than natural logs

• They simplify calculations without calculators

• They are the standard in modern chemistry

• They provide a larger range of values

In the example calculation, what is the standard cell potential for the reaction?

• 0.28V

• -0.76V

• -0.48V

• -0.54V

What is the significance of the number of moles of electrons (N) in the Nernst Equation?

• It is a constant value for all reactions

• It determines the temperature of the reaction

• It is used to calculate the reaction quotient

• It represents the number of electrons transferred

What happens to the cell potential when a reaction shifts to the right?

• It reaches zero

• It becomes more positive

• It becomes more negative

• It remains unchanged

How does a decrease in Zinc two plus concentration affect the reaction direction?

• Shifts the reaction to the right

• Shifts the reaction to the left

• Increases the reaction rate

• Has no effect on the reaction

What is the cell potential when a reaction reaches equilibrium?

• Undefined

• Positive

• Negative

• Zero

What is the effect of adding more Zinc two plus at equilibrium?

• Decreases the cell potential

• Increases the equilibrium constant

• Shifts the reaction to the right

• Shifts the reaction to the left