Recent content by gajagaja

Oh and yes - I do have a problem with all kinds of adiabatic processes and their compatability with the second law of thermodynamics. For example, in any adiabatic process, dQ = 0 (by definition). So, in a closed system, dU = dW. But now again, due to second law of thermodynamics, mechanical...

Hello Chet, I was not familiar with the first law of thermodynamics for open systems. But now, I read about it in the following link: http://www.learnengineering.org/2013/03/frist-law-of-thermodynamics-open-system.html And, per this page, there are two additional terms corresponding to the...

Hello all! I have a hard time about this one: Think of an adiabatic process (can be either reversible or irreversible - doesn't matter). dQ = 0. Assume only, mechanical work is done on/by the system. So by 1st law of thermodynamics, dU =dW. Now, everything is clear to me when I am dealing...