This program simulates ΔV in Nernst equation or ΔG in chemical reactions

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Choose an energy barrier
(activation energy)      

Choose a step (deltaG)  

If you choose "steps" for step height, the step will move sequentially from 20 to 100

This is a simulation to illustrate how particles (ions, reagents) can move from one state to another (from one compartment / conformation to another,  or bind or dissociate) in the presence of a free-energy (or voltage) difference between the two states.

Notice that the ΔG (ΔV) between the states determines a ratio between the probabilities of moving in the two opposite directions, and therefore a ratio between the number (concentration) of particles at steady state.

This means that if a ΔG determines a ratio 2:3 it will determine a ratio 20:30 or 200:300 - a difference in G (V) does not determine a fixed concentration difference but ratio.

The energy barrier (or activation energy for a chemical reaction) does not modify the steady state result but will simply slow down the reaction.

Try it.