hydrogen fuel cell

1 user has already solved this XWord.

A device that produces a continuous electric current directly from the oxidation of a fuel, as that of hydrogen by oxygen.
A colorless, odorless, flammable gas that combines chemically with oxygen to form water.
A colorless, odorless, gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature.
A transparent, odorless, tasteless liquid, a compound of hydrogen and oxygen.
The positive terminal of a voltaic cell or battery.
The negative terminal of a voltaic cell or battery.
The ratio of the work done or energy developed by a machine.
Any means in or by which someone travels or something is carried or conveyed.
Not harmful to the environment.
Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
A form of energy resulting from the existence of charged particles (such as electrons or protons).
Continuous physical force exerted on or against an object by something in contact with it.