Recent content by mark-ashleigh

  1. M

    High School Where Is the Missing Dollar in the Room Rental Puzzle?

    Ohhh i get it...lol
  2. M

    Find the current in a circuit - Do I use Kirchhoff's?

    Can't you just use ohm's law? V/I*R
  3. M

    How to Convert Units Using OnlineConversion.com?

    http://www.onlineconversion.com/ This page will let you convert into anything...within reason :P
  4. M

    Adiabatic heat exchanger problem

    Thats what i said...lol, but in laymen terms! :P
  5. M

    Molarity of a solution of ethanol in water

    I know what you mean though...
  6. M

    Molarity of a solution of ethanol in water

    No..i said mole fraction not w/w
  7. M

    Energy and calculating vaporization of water

    Just do a Process modell using ODE'S Input-output=accumulation. Do it a component balance so only use energy & temp
  8. M

    Do ChemE's use linear algebra extensively?

    mcabe & thiele
  9. M

    What is the difference between chemical engineering and chemistry?

    I am a chemical engineer and my degree was the same as Thearny's one! So, no need to comment..i think he covered it well :P lol
  10. M

    McCabe-Thiele Diagram: Murphree Efficiencies & Reboiler Stage

    yer , You must include the reboiler...the first step is always the rebolier...see Coulson and Richardson or Geankopolis (mass transfer) .
  11. M

    Searching for Steam Tables: What Programs are Worth Getting?

    i bought mine from waterstones for £7.50 ( part of the amazon group), so try amazon on-line.
  12. M

    Preparing for College: Tips for Finding a Chemical Engineering Program

    Yes, charles university in prague! best there is!
  13. M

    Adiabatic heat exchanger problem

    i didn't mean water i meant propane...lol
  14. M

    Chemistry Moles vs Molar Solutions: Comparing 0.50 Mole and 0.50 Molar Sodium Carbonate

    because one is a molarity Molarity = moles / solution ( litres) So for molarity it would be the 0.5 / 10 litres... ( molarity is the moles divided by the amount of solution...so they are different units) Hence moles % molar
  15. M

    Molarity of a solution of ethanol in water

    i think Then the mole fraction of water is 0.96...so the solution is 96% water and 4%Ethanol...this shoule help you going if you were unsure what the fraction was. Molarity= Moles of Solute / litres of solution Mole fraction (Ethanol) = Moles of Ethanol/ Moles of Ethanol + Water So do...