Question

Физика. Як зміниться кількість речовини, що виділиться на електродах у процесі електролізу, якщо а) збільшити напругу на електродахб) зблизити на електродахв) нагріти розчин

Answer 1

Запишем закон электролиза:
m=k * I * t

Увеличив напряжение на электродах, тем самым мы увеличиваем ток.

А именно величина тока I входит в формулу.  
В эту формулу НЕ ВХОДИТ ни расстояние между электродами, ни температура.
Значит, правильный ответ:  1) увеличить напряжение

Answer 2

Effect of Increasing Voltage on Electrolysis

When the voltage applied to the electrodes in an electrolysis process is increased, the amount of substance (referred to as the quantity of substance) that is deposited or liberated at the electrodes also increases. This phenomenon is known as Faraday's law of electrolysis. According to Faraday's law, the quantity of substance liberated or deposited at an electrode is directly proportional to the amount of electric charge passed through the electrolyte.

Increasing the voltage applied to the electrodes increases the electric current flowing through the electrolyte. As a result, more electric charge is passed through the electrolyte, leading to a greater quantity of substance being liberated or deposited at the electrodes. This relationship is expressed by the equation:

Quantity of Substance = (Electric Charge) x (Electrochemical Equivalent)

Where: - Quantity of Substance is the amount of substance liberated or deposited at the electrodes. - Electric Charge is the amount of electric charge passed through the electrolyte. - Electrochemical Equivalent is a constant that depends on the specific substance being electrolyzed.

Therefore, when the voltage is increased, the quantity of substance that is liberated or deposited at the electrodes in the electrolysis process will also increase. [[1]].

Effect of Decreasing Electrode Distance on Electrolysis

If the distance between the electrodes is decreased in an electrolysis process, the quantity of substance that is liberated or deposited at the electrodes will generally increase. This is because reducing the electrode distance decreases the resistance in the electrolyte, allowing for a higher electric current to flow.

When the electric current is increased, more electric charge is passed through the electrolyte, resulting in a greater quantity of substance being liberated or deposited at the electrodes. Therefore, by bringing the electrodes closer together, the electrolysis process becomes more efficient, and the quantity of substance produced increases. [[2]].

Effect of Heating the Solution on Electrolysis

Heating the electrolyte solution in an electrolysis process can also affect the quantity of substance that is liberated or deposited at the electrodes. When the solution is heated, the kinetic energy of the particles in the solution increases, leading to faster and more frequent collisions between the particles.

These increased collisions can enhance the rate of the chemical reactions taking place at the electrodes, resulting in a higher quantity of substance being liberated or deposited. Therefore, heating the solution in an electrolysis process can increase the efficiency of the process and lead to a greater quantity of substance produced. [[3]].

In summary, the quantity of substance that is liberated or deposited at the electrodes in an electrolysis process can be influenced by various factors. Increasing the voltage applied to the electrodes, decreasing the electrode distance, and heating the solution can all lead to an increase in the quantity of substance produced.