How does the First Law of Thermodynamics apply to recycling energy recovered from water decomposition?

Answer

It dictates that energy cannot be created or destroyed, meaning recoverable energy equals the initial input energy only under ideal, zero-loss conditions.

The First Law confirms that the energy gained from recombining hydrogen and oxygen should theoretically equal the electrical energy used to split the water, establishing the ceiling for recoverable energy.

How does the First Law of Thermodynamics apply to recycling energy recovered from water decomposition?
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