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6 votes

Why aren’t electrolyzers made like this(two inter-locking coils)?

The geometrical arrangement for galvanic cells and electrolytic cells is usually very different. The spiral arrangement is routinely used for the former, but not the latter. For the electrolytic cells,...
Poutnik's user avatar
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5 votes
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Is Li2CuSb thermoelectric?

Just about any two conductors can produce thermoelectricity. Some pairs produce only a tiny voltage difference, such as platinum/rhodium-alloy thermocouples, which is very inefficient at generating ...
DrMoishe Pippik's user avatar
5 votes
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Open-circuit potential of an electrochemical cell

Basically you've have the right ideas. The open-circuit potential of an electrochemical cell is the theoretical voltage that one would measure as the current flow approaches zero. Think of plotting ...
MaxW's user avatar
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4 votes
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What exactly is the area used in the equation R=ρl/A to find the resistance of an electrolyte?

The formula above is applicable only at some specific conditions: The conducting medium is homogenous. The cross-section area A of a conductive medium must be constant along all the distance between ...
Poutnik's user avatar
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3 votes
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2D semiconductors, and their practical applications

A looking for commercial 2D-semiconductor devices on the web showed only a few items, e.g., Search on "commercial graphene transistor" returned devices from MSE Supplies. Search on "...
DrMoishe Pippik's user avatar
3 votes

Fundamental understanding of electrode potentials

Consider an electrode immersed into an electrolyte, two things can occur. Metal ion $M^{n+}$ from the solution may collide with the electrode, gaining $n$ electrons from it, and convert to metal ...
wqeq's user avatar
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3 votes

Do plasma globes generate ozone?

Image Citation: Volkov, Alexander & S, Hairston & Patel, Darayas & Sarkisov, Sergey. (2023). Cold Atmospheric Pressure Plasma Jet and Plasma Lamp Interaction with Plants: ...
Ronith's user avatar
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2 votes

How do the ions in electrolytes lead to lower dielectric constants compared to pure water?

An electric dipole with a dipole moment $\vec{p}$ in an electric field $\vec{E}$ has the energy : $\Delta E = - \vec{p}.\vec{E}$. This energy is minimal if the dipole moment and the field are aligned. ...
M06-2x's user avatar
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1 vote
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Why does current remain constant in a conductor having non-uniform cross section for constant voltage supply if I=neAvd?

You have forgotten to consider that $v_\text{d} \propto \frac 1A$. A place with a narrower wire means there is stronger intensity of electric field, causing faster electron drift motion, compensating ...
Poutnik's user avatar
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1 vote

Why does current remain constant in a conductor having non-uniform cross section for constant voltage supply if I=neAvd?

The current is the number of electrons crossing a given section of the conducting wire per second. It does not depend on the importance of this section or of the position of this section along the ...
Maurice's user avatar
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1 vote

Why aren’t electrolyzers made like this(two inter-locking coils)?

I found another reason it isn’t used, for anyone who may view this question in the future. Energy efficiency goes way down. Electrolysis only requires 2 volts to work. Anything more than that is ...
Anish Kommireddy's user avatar

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