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  • Pounds to Cubic feet

    I need help with this
    I am trying to convert pounds to cubic feet
    of nitrogen gas which it's density is 0.066 and 0.073
    hope somebody can give me a formula because I work with different
    fluids and gases.
    Thanks,


  • #2
    Re: Pounds to Cubic feet

    I need help with this
    I am trying to convert pounds to cubic feet
    of nitrogen gas which it's density is 0.066 and 0.073
    hope somebody can give me a formula because I work with different
    fluids and gases.
    Thanks,

    Nitrogen at room temperature (20 C, 1 atmosphere) has a density of 0.73 lb per cubic foot. To covert from mass to volume use the following:

    Volume = Mass / Density

    Comment


    • #3
      Re: Pounds to Cubic feet

      Nitrogen at room temperature (20 C, 1 atmosphere) has a density of 0.73 lb per cubic foot. To covert from mass to volume use the following:

      Volume = Mass / Density

      Comment


      • #4
        Re: Pounds to Cubic feet

        It is 0.073 lb/cubic foot not 0.73

        Comment


        • #5
          Re: Pounds to Cubic feet

          I am trying to convert pounds to cubic feet
          of helium gas, can someone please help

          Comment


          • #6
            Re: Pounds to Cubic feet

            Originally posted by Unregistered View Post
            I am trying to convert pounds to cubic feet
            of helium gas, can someone please help
            Like all gases, density varies with temperature and pressure. At 0 C, 101.325 kPa, density is 0.1787 kg/m. That converts to 0.011156 lb/ft.

            Comment


            • #7
              Re: Pounds to Cubic feet

              I want to convert BTU/SCF into BTU/GAL,BTU/LBS so i need conversion factor pl rpy

              Comment


              • #8
                Re: Pounds to Cubic feet

                Originally posted by Unregistered View Post
                I want to convert BTU/SCF into BTU/GAL,BTU/LBS so i need conversion factor pl rpy
                BTU/SCF is normally used with gases. Standard conditions vary by industries, but for fossil fuels are usually 1 atm, 60 F. To convert to BTU/LB, you need to know the density of the gas at these conditions; that density will depend on the chemical composition of the gas.

                BTU/Gal is normally used for liquids. To convert to BTU/LB, you need to know the density of the liquid, which varies with chemical composition and temperature.

                A fuel fuels such as propane may exist as a pressurized liquid (around 10 atm) or a gas at 1 atm. To convert between those states, you would have to know what gas and pressure and temperature in the two different states.

                There is NO general conversion factor between these. It depends on the substance and conditions, which you didn't identify.

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