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  • Users: roes
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  1. roes

    Calculation for draining a tank

    Latexman Thanks for information. I had looked at the site you gave me, but I was also looking for the actual calculation so that I can check the answers by hand.
  2. roes

    Calculation for draining a tank

    I would like to know the calculation for finding the time to drain a static, atmospheric tank of water to a pit, which is also at atmospheric pressure. Can anyone help? Please include friction loss and minor losses.
  3. roes

    Arrhenius equation

    Is the exponent in the Arrhenius equation positive or negative for an exothermic reaction? And, does the reaction rate increase or decrease as the temperature increases for an exothermic reaction? Finally, does conversion increase or decrease as temperature in increased for an exothermic reaction?
  4. roes

    Mass flow through a square duct

    Is there a basic equation for calculating the mass flow of air though a square duct. I know the velocity of the air (680 ft/min) and the duct size (24 by 24 by 10 feet long)?
  5. roes

    rubber moles

    How can I convert rubber mass to moles? I know the number average molecular weight.

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