What is the voltage of the reaction of a substance in electrochemistry?

a.Any electrochemical reaction occurs at the interface between an electron conductor (or electrode in the narrow sense) and an ion-carrying conductor.

b.There are two reaction directions in the same electrochemical reaction: forward and reverse.

c.The absolute velocity of the forward reaction and the absolute velocity of the reverse reaction are both positive.

d.The net velocity of an electrochemical reaction is the algebraic sum of the absolute velocities of the forward and reverse reactions.

Correct answer: Any electrochemical reaction occurs at the interface between an electron conductor (or electrode in a narrow sense) and an ionic conductor; There are two reaction directions in the same electrochemical reaction: forward and reverse. The absolute velocity of the forward response tremor and the absolute velocity of the reverse reaction are both positive.

Chemical reactions, including electrochemical reactions, are the relationship between big concepts and small concepts, and are the relationship between inclusion.

Electrochemical reactions are a subclass of chemical reactions.

Electrochemical reactions are further divided into galvanic cell reactions and electrolytic cell reactions.

The galvanic battery must be a spontaneous redox reaction, through the design of the device, so that it produces a current electrolytic cell, and the matter is energized to undergo a redox reaction, and the reaction can not spontaneously carry out the electrochemical reaction requires an electrolyte environment.

Electrochemistry is the science that studies the mutual conversion between electrical energy and chemical energy and the relevant laws in the conversion process. The electrochemical reaction must be a redox reaction, and there is electron transfer in order to convert the chemical energy in the reaction into electrical energy. The transfer or bias of having electrons is the essence of electrochemistry.

In the electrochemical reaction, the spontaneous redox reaction of the galvanic cell and the electrolytic cell can theoretically be made into a galvanic cell, and the electrolytic cell occurs under the condition of external power supply and does not require spontaneous generation.

Chemical reactions include electrochemical reactions that do not necessarily require electron transfer or bias, such as metathesis reactions.

The reaction between the galvanic cell and the electrolytic cell is an electrochemical reaction, and the formation of a galvanic cell and electrolysis is an electrochemical reaction.

Galvanic cells such as Zn, Cu and dilute sulfuric acid are composed of galvanic cells. zn+2h+=zn2+ +h2↑

Electrolytic cells such as electrolysis of saturated salt water. 2NaCl + 2H2O = energized = 2NaOH + H2 + Cl2

Electrochemistry is the study of the chemistry of galvanic cells and electrolytic cells.

To put it simply, it is a reaction based on the principle of galvanic cells.

It is carried out in an electrolyte solution with a closed loop and two electrodes with different metallic properties.

The positive and negative effects of the electrodes are used to change the movement and reorganization of positive and negative ions in the chemical solution.

When using an inert electrode, the discharge sequence of cations in aqueous solution on the cathode is as follows: AG+>HG2+>Fe3+>Cu2+>H+>Fe2+>Zn2+

The order of discharge of anions on the anode in aqueous solution is: S2->I->Br->Cl->OH-