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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...

  3. Hydrogen production - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_production

    At an electricity cost of $0.06/kWh, as set out in the Department of Energy hydrogen production targets for 2015, [73] the hydrogen cost is $3/kg. The US DOE target price for hydrogen in 2020 is $2.30/kg, requiring an electricity cost of $0.037/kWh, which is achievable given recent PPA tenders for wind and solar in many regions. [74]

  4. Gasoline gallon equivalent - Wikipedia

    en.wikipedia.org/wiki/Gasoline_gallon_equivalent

    [1] Compressed natural gas (CNG), for example, is a gas rather than a liquid. It can be measured by its volume in standard cubic feet (ft 3) at atmospheric conditions, by its weight in pounds (lb), or by its energy content in joules (J), British thermal units (BTU), or kilowatt-hours (kW·h). CNG sold at filling stations in the US is priced in ...

  5. U.S. gas prices in 2024: how much is gasoline in each state?

    www.aol.com/finance/u-gas-prices-2024-much...

    The current national gas price average is $3.62 per gallon. The average cost of gas has decreased 15% in the last two years, from when it was $4.27 per gallon.

  6. Hydrogen economy - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_economy

    The following table shows a range of estimates of the levelized costs of gray, blue, and green hydrogen, expressed in terms of US$ per kg of H 2 (where data provided in other currencies or units, the average exchange rate to US dollars in the given year are used, and 1 kg of H 2 is assumed to have a calorific value of 33.3kWh).

  7. This Was the Cost of Gas the Year You Were Born - AOL

    www.aol.com/cost-gas-were-born-230000763.html

    The cost of gas has been volatile in recent years as markets react to world events, but it hasn't always been that way. This Was the Cost of Gas the Year You Were Born Skip to main content