A Battery Is Constructed by Placing Copper and Lead Electrodes

question 68

True/False

A battery is constructed by placing copper and lead electrodes in contact with 1.0 molar CuSO₄(aq) and Pb(NO₃)₂ (aq) solutions, respectively. If sulfuric acid is then added to the Pb(NO₃)₂ solution, thereby forming a precipitate of PbSO₄, the cell potential will decrease.

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Definitions:

Exponential Curves

Graphs representing exponential functions, showing how values can grow rapidly due to constant proportionality rates.

Time Constants

A parameter that quantifies the response time of a system to a step input, notably in RC and RL circuits, characterized by the time it takes for a system to change significantly.

Electromagnetic Induction

The phenomenon where an electromotive force (EMF) is induced in a closed circuit by a change in the flux of magnetic field.

Lenz's Law

A principle in electromagnetism stating that an induced electric current will flow in a direction such that it opposes the change in magnetic flux that produced it.