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Chapter 21: Q21.9P (page 972)

Which statements are true? Correct any that are false.

(a) In a voltaic cell, the anode is negative relative to the cathode.

(b) Oxidation occurs at the anode of a voltaic or electrolytic cell.

(c) Electrons flow into the cathode of an electrolytic cell.

(d) In a voltaic cell, the surroundings do work on the system.

(e) A metal that plates out of an electrolytic cell appears on the cathode.

(f) The cell electrolyte provides a solution of mobile electrons.

Short Answer

Expert verified

All statements are true except statements (d) and statement (f).

Step by step solution

01

Definition of Electrochemistry

Electrochemistry is a discipline of physical chemistry concerned with the relationship between electrical potentialas a quantifiable and quantitative phenomenon and recognizable chemical change, with electrical potential as an outcome of a specific chemical change or vice versa.

02

Explanation of whether the statement is true or false.

a) True

b) True

c) True

d) False,

Correction: The energy is released due to the spontaneous reaction. The system does work on the surrounding.

e) True

f) False,

Correction: The cell electrolyte provides a solution of mobile ions.

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