
Hydrogen was first identified as a distinct element by British scientist Henry Cavendish after he separated hydrogen gas by reacting zinc
metal with hydrochloric acid. In a demonstration to the Royal Society of London, Cavendish applied a spark to hydrogen gas yielding
water. This discovery led to his later finding that water (H2O) is made of hydrogen and oxygen.
Antoine Lavoisier gave hydrogen its name, which was derived from the Greek words - “hydro” and “genes,”meaning “water” and “born
of" it is also why we selected H2-Hydro-Gen for the name for our Hydrogen Generator.
Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. At standard temperature and pressure,
hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas with the molecular formula H2.
1804 -Francois Isaac de Rivaz of Switzerland invented an first internal combustion engine and in 1807 (Yes 1807) he made the
first internal combustion automobile. It used a mixture of hydrogen and oxygen for fuel.
In the 1820 British scientist introduced the concept of renewable hydrogen in his paper, Science and the Future, by proposing that ”
there will be great power stations where during windy weather the surplus power from windmills would be used for the electrolytic
decomposition of water into oxygen and hydrogen.” Today Iceland is become energy independent by moving to a Hydrogen
economy using there thermal energy to do exactly this.
Hydrogen production is a large and growing industry. Globally, some 50 million metric tons of hydrogen, equal to about 170 million
tons of oil equivalent, were produced in 2004. The growth rate is around 10% per year.
Within the United States, 2004 production was about 11 million metric tons (MMT), an average power flow of 48 gigawatts.
As of 2005, the economic value of all hydrogen produced worldwide is about $135 billion per year. Other Links
In 1800 the English scientists
William Nicholson and Sir Anthony
Carlisle discovered that applying
electric current to water produced
hydrogen and oxygen gases. This
process was later termed
“electrolysis."


Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an atomic weight of 1.00794 u,
hydrogen is the lightest element. Hydrogen is the most abundant chemical element, constituting roughly 75 % of the universe's elemental
mass.
Hydrogen gas is highly flammable and will burn in air at a very wide range of concentrations between 4% and 75% by volume. The
enthalpy of combustion for hydrogen is −286 kJ/mol:
2 H2(g) + O2(g) → 2 H2O(l) + 572 kJ (286 kJ/mol)
Hydrogen gas forms explosive mixtures with air in the concentration range 4-74% (volume per cent of hydrogen in air)