Question

Why dpes internal resistance decrease when concetration of electrolye increases?

Answer 1

Answer:

To explain:

Internal resistance decreases with increase in electrolyte concentration.

Explanation:

Electrolyte are polar charged molecules.

Due to their charged character , their movement can cause flow of charges leading to current.

Internal resistance is actually decided by the resistance of charge flow.

Increase in the electrolyte concentration,

leads to increase charge carriers . This causes increase in current flow and hence decrease in internal resistance.

Answer 2

Question:

• Why does internal resistance decreases when concentration of electrolyte increases ?

Explanation:

• Basically, Resistance is the property of a material which opposes flow of current.

• Now, We know that, flow of current (i) is decided by Charge (q) carried per unit time (t).

• That is, $\large\bold\red{i=\frac{q}{t}}$

• Again, Charge is carried by the electrons, in quantized form.

• So, Resistance will decrease if the number of electrons flowing per unit time will increase.

• Now, we know that electrolyte conduct electricity by dissociation of constituent ions.

• Also, we know that , ions are the charge carriers, that is the source of electrons.

• When the concentration of electrolyte is increased, the dissociation into ions will also increase.

• And increase in ions will increase the number of electrons.

• This increased number of electrons will lead to more passage of charge per unit time.

• And, Further, it will decrease the Internal resistance of the material or source.