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    Calculating Entropy Change for an Ideal Gas Expansion

    Yes, I used w because it had the same value and then forgot the sign, so I got the wrong result. Thank you!
  2. C

    Calculating Entropy Change for an Ideal Gas Expansion

    Then if it`s isothermal, dU is equal to zero, so the value for Q is just -w, right?
  3. C

    Calculating Entropy Change for an Ideal Gas Expansion

    I used delta S=nRln(Vf/Vi) for delta S system and then I found a reversible path and calculated the value as being 0.76 JK-1 for delta S surroundings (it turned out to be -w/T). I may have forgotten to write the minus sign, I don`t know.
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    Calculating Entropy Change for an Ideal Gas Expansion

    MENTOR NOTE: NO TEMPLATE BECAUSE SUMITTED TO WRONG FORUM. 3.1) A quantity of 0.10 mol of an ideal gas A initially at 22.2 degrees C is expanded from 0.200 dm3 to 2.42 dm3 . Calculate the values of work (w), heat (q), internal energy change (delta U), entropy change of the system (deltaSsys)...
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