Recent content by Stephen Clarke

  1. S

    Entropy Change - Irreversible Isothermal Compression

    Thanks. One last question. I know sign convention and interpretation can get fuzzy. Is it accurate to say heat removed from this system (-Q) is equivalent to heat gained by the surroundings, in which case we would use a positive value of Q? (Since we are changing reference points, I.e., system...
  2. S

    Entropy Change - Irreversible Isothermal Compression

    AH! To answer your question, is it correct to say that the heat transferred to the surroundings is simply q = -w? That is to say, work done by the constant external Pressure forces heat out of the system, or w = -P(V2-V1)?
  3. S

    Entropy Change - Irreversible Isothermal Compression

    Given a sample of nitrogen gas (assume ideal gas conditions), the following conditions were observed inside the container. n = 0.75 moles at 253 K, and pressure = 0.5 atm. Then, an ISOTHERMAL IRREVERSIBLE COMPRESSION on the system forced by a constant Pexternal = 10 atm reduced the initial...
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