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  2. Electrolysis of water - Wikipedia

    en.wikipedia.org/wiki/Electrolysis_of_water

    Pure water has a charge carrier density similar to semiconductors [8] [page needed] since it has a low autoionization, K w = 1.0×10 −14 at room temperature and thus pure water conducts current poorly, 0.055 μS/cm. [9] Unless a large potential is applied to increase the autoionization of water, electrolysis of pure water proceeds slowly ...

  3. Water–gas shift reaction - Wikipedia

    en.wikipedia.org/wiki/Water–gas_shift_reaction

    This is sometimes called the reverse water–gas shift reaction. [19] Water gas is defined as a fuel gas consisting mainly of carbon monoxide (CO) and hydrogen (H 2). The term 'shift' in water–gas shift means changing the water gas composition (CO:H 2) ratio. The ratio can be increased by adding CO 2 or reduced by adding steam to the reactor.

  4. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    The modern 24-hour clock is the convention of timekeeping in which the day runs from midnight to midnight and is divided into 24 hours. This is indicated by the hours (and minutes) passed since midnight, from 00 (:00) to 23 (:59), with 24 (:00) as an option to indicate the end of the day. This system, as opposed to the 12-hour clock, is the ...

  5. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    Water ( H2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound [ 19] and is described as the "universal solvent " [ 20] and the "solvent of life". [ 21]

  6. GS1 DataBar Coupon - Wikipedia

    en.wikipedia.org/wiki/GS1_DataBar_Coupon

    GS1 DataBar Stacked Omni-Directional barcode symbol encoding 00123456789012. The GS1 Databar Coupon code has been in use in retail industry since the mid-1980s. At first, it was a UPC with system ID 5. Since UPCs cannot hold more than 12 digits, it required another barcode to hold additional information like offer code, expiration date and ...

  7. United States dollar - Wikipedia

    en.wikipedia.org/wiki/United_States_dollar

    It called for silver coins in denominations of 1, 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 10, and 1 ⁄ 20 dollar, as well as gold coins in denominations of 1, 1 ⁄ 2 and 1 ⁄ 4 eagle. The value of gold or silver contained in the dollar was then converted into relative value in the economy for the buying and selling of goods.

  8. Burger King products - Wikipedia

    en.wikipedia.org/wiki/Burger_King_products

    Burger King's supply contracts for non-carbonated beverages are separate from the ones for its sodas. When the company first chose to introduce a bottled water product, it chose Nestlé's Poland Spring brand over Coke's Dasani. When the contract expired in 2003, BK moved to Pepsi's Aquafina, the top-selling brand at the time.

  9. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    According to a report published by the Water Footprint organization in 2010, a single kilogram of beef requires 15 thousand liters (3.3 × 10 ^ 3 imp gal; 4.0 × 10 ^ 3 U.S. gal) of water; however, the authors also make clear that this is a global average and circumstantial factors determine the amount of water used in beef production.