10 A Flashcards

1
Q

Equation relating E cell and K

A

Ecell=(0.0257 V/n)lnK

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

K, dG, and E cell of a spontaneous reaction

A

K >1 (prodcuts), dG=negative, Ecell=positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What equation relates the two dG equations

A

-nFE=-RTlnK

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the Nernst equation allow for

A

Calculating the Cell voltage under any condition
Ecell=E^0cell-(0.0257/n)lnQ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When does Ecell (nonstandard)=0

A

When reaction is at equilibrium (or K=Q)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A redox reaction can be a source of ____ when the cell potential is not 0

A

Electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What energies are ocnverted in a batter/dry cell

A

Chemical to electrial energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When do batteries run out

A

When concentrations reach equilibria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Fuel cell

A

Electrochemical cellthat requires a continuous supply of reactants to keep functioning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Electrolysis

A

The process in which electrical energy is used to cause a NON spontaneous reaction to occur

Electrical to chemical energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly