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Homework Help: Calculating delta E for a Gas

  1. Mar 1, 2010 #1
    1. The problem statement, all variables and given/known data

    Calculate DeltaE of a gas for a process in which the gas absorbs 42J of heat and does 14J of work on the surroundings. (ie the gas expands)

    2. Relevant equations
    DeltaH=DeltaE-Q


    3. The attempt at a solution
    42=deltaE-14

    DeltaE=+28J

    This is one of the last problems on my chem review and it just seems too easy. If anyone could verify my process that would be great.
     
  2. jcsd
  3. Mar 1, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper

    wouldn't then ΔE=42+14 ?
     
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