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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 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).

  4. 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 ]

  5. Lifting gas - Wikipedia

    en.wikipedia.org/wiki/Lifting_gas

    Therefore, the amount of mass that can be lifted by hydrogen in air at sea level, equal to the density difference between hydrogen and air, is: (1.292 - 0.090) kg/m 3 = 1.202 kg/m 3. and the buoyant force for one m 3 of hydrogen in air at sea level is: 1 m 3 × 1.202 kg/m 3 × 9.8 N/kg= 11.8 N

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

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

    For example, from May 2022 to June 2022 the average cost of gas increased by $0.88 per gallon. Data below from the U.S. Energy Administration show fuel costs from 2011 to 2023. Average price per ...

  7. Energy density Extended Reference Table - Wikipedia

    en.wikipedia.org/wiki/Energy_density_Extended...

    Metallic hydrogen (recombination energy) 216 [2] Specific orbital energy of Low Earth orbit (approximate) 33.0: Beryllium + Oxygen: 23.9 [3] Lithium + Fluorine: 23.75 [citation needed] Octaazacubane potential explosive: 22.9 [4] Hydrogen + Oxygen: 13.4 [5] Gasoline + Oxygen –> Derived from Gasoline: 13.3 [citation needed] Dinitroacetylene ...

  8. Here’s How Much the Average American Spends on Gas in a ...

    www.aol.com/much-average-american-spends-gas...

    The cost of gas costs in a lifetime: $90,495.69. The average annual cost of gas: $1,483.54. The total average lifetime fill ups: 1,845. ... which would equate to 329.4 miles per full tank of gas ...

  9. Gas Prices: How Israel-Hamas War Could Have a Major Impact - AOL

    www.aol.com/finance/gas-prices-israel-hamas-war...

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