Relationship between Cell Potential and Gibbs Energy Change NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Relationship between Cell Potential and Gibbs Energy Change MCQ Questions


7.
A cell has E°cell = 1.10 V and involves 2 electrons, what is ΔG°?
A.
-212.0 kJ/mol
B.
-220.0 kJ/mol
C.
-211.6 kJ/mol
D.
-215.0 kJ/mol
😑 View Answer Rough Work Error
ANSWER :
C. -211.6 kJ/mol
8.
If ΔG° = 0, what does it indicate about the system?
A.
It is at equilibrium
B.
The cell is dead
C.
The system is irreversible
D.
The reaction is spontaneous
😑 View Answer Rough Work Error
ANSWER :
A. It is at equilibrium
9.
Which factor does not affect the value of Gibbs free energy directly in the equation ΔG = -nFE?
A.
n
B.
F
C.
E
D.
Temperature
😑 View Answer Rough Work Error
ANSWER :
D. Temperature
10.
If ΔG° is positive, then E°cell is
A.
Positive
B.
Zero
C.
Negative
D.
Can't be predicted
😑 View Answer Rough Work Error
ANSWER :
C. Negative
11.
Which is the correct value of Faraday constant (F) in SI units?
A.
96500 C/mol
B.
1.602×10⁻¹⁹ C
C.
8.314 J/mol·K
D.
96485 C/mol
😑 View Answer Rough Work Error
ANSWER :
D. 96485 C/mol
12.
When a redox reaction is spontaneous, which of the following is always true?
A.
ΔG is positive
B.
ΔG is negative
C.
Ecell is negative
D.
ΔG is zero
😑 View Answer Rough Work Error
ANSWER :
B. ΔG is negative