Electrochemistry Test

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Electrochemistry Test - 1

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Question 1
1 / -0

Electrochemistry is the study of production of electricity from

A
nuclear energy and the use of electrical energy to bring about non-spontaneous chemical transformations

B
energy released during spontaneous chemical reactions and the use of electrical energy to bring about non-spontaneous chemical transformations

C
energy released during spontaneous chemical reactions and the use of heat energy to bring about non-spontaneous chemical transformations

D
nuclear energy and the use of heat energy to bring about non-spontaneous chemical transformations

Solution

Explanation:

Electrochemistry is branch of chemistry that deals with production of electricity from a chemical reaction or carrying out a non spontaneous reaction using electricity.
Question 2
1 / -0

Galvanic or a voltaic cell converts the chemical energy liberated during a redox reaction to

A
electrical energy

B
electromagnetic energy

C
thermal energy

D
acoustic energy

Solution

Explanation:

Galvanic cells convert chemical energy to electrical energy.
Question 3
1 / -0

Electrolytic cell is a device for using electrical energy to carry

A
non-spontaneous chemical reactions

B
spontaneous chemical reactions

C
non-spontaneous chemical reactions

D
non-spontaneous chemical reactions

Solution

Explanation:

Electrolytic cell converts non spontaneous chemical reaction to electrical energy using electricity.
Question 4
1 / -0

Fundamental difference between an electrolytic cell and the galvanic cell is that in an electrolytic cell free energy

A
decreasesas work is done by the system by the on outside world

B
is supplied in the form of mechanical work done on the system by the outside world

C
is supplied in the form of mechanical work done by the system on the outside world

D
is supplied in the form of electrical work done on the system by the outside world

Solution

Explanation:

In electrolytic cell electrical energy is converted into chemical energy.
Question 5
1 / -0

Standard electrode potential are measured with the concentrations of all the species involved in a half-cell is

A
3

B
4

C
2

D
1

Solution

Explanation:

Under standard condition concentration of every species is taken as 1.
Question 6
1 / -0

standard hydrogen electrode operated under standard conditions of 1 atm H2 pressure, 25°C, and pH = 0 has a cell potential of

A
0.5 V

B
1.0 V

C
0.33 V

D
0V

Solution

Explanation:

Standard electrode potential of hydrogen electrode is taken as 0V.

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Electrochemistry Test - 1

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Question 1

nuclear energy and the use of electrical energy to bring about non-spontaneous chemical transformations

energy released during spontaneous chemical reactions and the use of electrical energy to bring about non-spontaneous chemical transformations

energy released during spontaneous chemical reactions and the use of heat energy to bring about non-spontaneous chemical transformations

nuclear energy and the use of heat energy to bring about non-spontaneous chemical transformations

Solution

Question 2

electrical energy

electromagnetic energy

thermal energy

acoustic energy

Solution

Question 3

non-spontaneous chemical reactions

spontaneous chemical reactions

non-spontaneous chemical reactions

non-spontaneous chemical reactions

Solution

Question 4

decreasesas work is done by the system by the on outside world

is supplied in the form of mechanical work done on the system by the outside world

is supplied in the form of mechanical work done by the system on the outside world

is supplied in the form of electrical work done on the system by the outside world

Solution

Question 5

3

4

2

1

Solution

Question 6

0.5 V

1.0 V

0.33 V

0V

Solution

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