Although invariably in the headlines as the answer to future fuel and transportation challenges, hydrogen fulfils a significant role in a multitude of applications.
Often termed as the ‘fuel of the future’, hydrogen (H2) is the most abundant element in the universe, but is almost absent from the atmosphere.
Individual molecules in the upper atmosphere can gain high velocities during collisions with heavier molecules, and therefore become ejected from the atmosphere.
Hydrogen is the lightest of all gases, approximately one-fifteenth as heavy as air and with the highest combustion energy release per unit of weight of any commonly occurring material.
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