Question

Напряжение между электрдами равно 50в какая масса вещества выделиться при электролизе если приэтом работа электрического тока равно 100кдж? электрохимическая эквивалентность вещества 3.2 *10-7 кг/К

Answer 1

дано  U=50 В       А=100 000 Дж       k=3,2*10^-7 кг/Кл      m- ?

по закону Фарадея  m=k*q      q=A/U
m=k*A/U=3,2*10^-7*10^5/50=0,64 г

Answer 2

I will try to answer your question in detail. The voltage between the electrodes is equal to 50 V. How much substance will be released during electrolysis if the work of the electric current is equal to 100 kJ? The electrochemical equivalent of the substance is 3.2 * 10-7 kg / C.

The amount of substance released during electrolysis depends on the amount of electric charge that passes through the electrolyte. The electric charge is equal to the product of the electric current and the time. The electric current is equal to the ratio of the work and the voltage. Therefore, we can find the electric charge as follows:

Q = W / U = 100 kJ / 50 V = 2000 C

The amount of substance released during electrolysis is equal to the product of the electric charge and the electrochemical equivalent of the substance. Therefore, we can find the mass of the substance as follows:

m = Q * k = 2000 C * 3.2 * 10-7 kg / C = 0.00064 kg

The answer is: The mass of the substance released during electrolysis is 0.00064 kg.