Nerst equation Index of /IB PAST PAPERS - SUBJECT/Group 4 - Sciences/ (ibdocuments.com)
1.
2. Consider the following redox reaction carried out in a voltaic cell.
Pb +2Ag+ →Pb2+ + Ag
If the reduction potential for Pb2+ is −0.13V and for Ag+ it is +0.80V, what is the
value of K and ΔGo for this reaction at a temperature of 298.15K?
ΔGo=−180kJmol
K=2.8⋅1031
ΔGo=+180kJmol
K=2.8⋅1031
ΔGo=−120kJmol
K=4.4⋅1031
ΔGo=−180kJmol
K=2.8⋅10−31
Correct answer:
ΔGo=−180kJmol
K=2.8⋅1031
What is the Nernst equation?
An equation to figure out the voltage of a reaction
battery is
An equation to figure out how full your
An equation to figure out how long your battery will last
on a system
An equation to figure out the pressure
What is the Nernst equation?
a. An equation to figure out the voltage of a reaction
B. An equation to figure out how full your battery is
C. An equation to figure out how long your battery will last
D. An equation to figure out the pressure on a system
What does 'F' in the Nernst equation refer to?
a.
b.
c.
d.
To Faraday's constant, or the charge on a mole of electrons
To Faraday's constant, or the ideal gas constant
To the number of moles of electrons
To the cell potential