Recharging Batteries [ENDORSED]

[Annalyn Diaz 1J]

Why is recharging a battery considered to be an unfavorable reaction?

[IsabelLight2H]

I think it's because the battery is absorbing energy. A favorable reaction releases energy.

[KatrinaPho_2I]

For batteries to be recharged, the reaction has to be reversed and electrical energy has to be supplied. Because we have to supply and input energy, this is not favorable.

[makenzie2K]

In a favorable reaction, the system is doing work. By charging a battery, you are doing work to a system. While possible, it is just simply not ideal.

[Dimitri Speron 1C]

The potential of the reverse reaction is negative, therefore it is not spontaneous and will require a supply of energy to occur.

[Rehan Chinoy 1K]

Charging a reaction is endergonic and thus not spontaneous.

[Nicklas_Wright_1A]

Charging a battery requires supplying it with energy.

[Rehan Chinoy 1K]

Remember that in a battery electrical energy --> chemical energy.

[Hannah Yates 1K]

I think it's because the battery is absorbing energy. A favorable reaction releases energy.

Exactly. For example, we supply energy to our phone battery by plugging it in.

[Maya Beal Dis 1D]

A battery dying or being used is releasing energy and therefore favorable, so the reverse reaction (charging the battery) would not be favorable.

[AGaeta_2C]

The favorable case would be if the battery was doing work and dying. Therefore the unfavorable action would be recharging it.