According to About.com, at standard pressure, hydrogen has a boiling point of minus 252.762 degrees Celsius, so converting it from a gas to liquid requires compressing and cooling it. Hydrogen is normally an odorless, colorless gas. It is so light in weight, it is able to diffuse from Earth's atmosphere.Continue Reading
Technifab Products, Inc. says it takes a large amount of energy to compress and chill hydrogen to a liquid. These energy requirements result in a loss of 30 percent of the energy the liquid stores. Storage requires highly insulated and reinforced tanks to maintain temperature and pressure.
NASA uses liquid hydrogen and liquid oxygen as a fuel and oxidizer for its rockets. Its launch pads include vacuum bottles, where the fuel is stored under pressure. Allowing a small amount of the liquid hydrogen to convert back into a gas provides the pressure needed to transfer the liquid from the storage tank into the rocket fuel tank.
The Office of Energy Efficiency & Renewable Energy reports, "On-board hydrogen storage for transportation applications continues to be one of the most technically challenging barriers to the widespread commercialization of hydrogen-fueled vehicles." For hydrogen-fueled vehicles to become competitive with those already on the road, the challenge is finding a safe and affordable method of storage that allows enough fuel to drive the vehicle 300 miles on a single fill.Learn more about Organic Chemistry
The freezing point of neon is minus 415.5 degrees Fahrenheit (minus 248.6 degrees Celsius), which is only slightly lower than its boiling point of minus 410.66 F (minus 245.92 C). This very low freezing point is a characteristic of all noble gases.Full Answer >
Oxygen has a boiling point of minus 297.31 degrees Fahrenheit or minus 182.95 degrees Celsius and a melting point of minus 361.82 degrees Fahrenheit or minus 218.79 degrees Celsius. Oxygen is a gas at room temperature and is classified as a non-metal.Full Answer >
The Oxford Dictionary says a star is a massive ball of gas, primarily helium and hydrogen, compressed by its own gravity to the point that spontaneous nuclear reactions are triggered, causing it to emanate heat, light and other forms of energy. The sun is the closest star to the Earth. All other stars are so distant from the solar system they only appear as tiny points of light.Full Answer >
Starch consists of carbon, hydrogen and oxygen. Starch is formed from glucose monomers linked together with dehydration reactions, giving the formula (C6H10O5)n, where "n" is the number of glucose monomers bonded together.Full Answer >