Recent content by Kolin101

  1. Kolin101

    Academic First Law Of Thermodynamics Problem

    ok I've figured out how would it look like in "my style solution" but I still have some questions. Why does the $$ u\frac{dn}{dt} $$ term disappears? when i rewrote it using mass instead of moles, the term $$\frac{dm}{dt}CvT$$ seems to have a non zero value (there is a mass flowing out, that...
  2. Kolin101

    Check My Solution for Second Problem (w,q)

    Hi there again. I have a second problem for which I don't have an answer to compare with, hence I'm kindly asking someone to check the solution of mine. lower case w and q are the work and heat per 1kg respectively, and w's with a vector are of course the velocities at the inlet and at the outlet.
  3. Kolin101

    Academic First Law Of Thermodynamics Problem

    Thank You a lot, I've tried also this way but with no results. But to be sure, what for does the "n" stands for in your first equation?
  4. Kolin101

    Academic First Law Of Thermodynamics Problem

    Hi there. I have a problem solving above problem. How can I move on with my solution? It seems to me that I have proper approach but I'm just stuck with the energy equation ;/ Part of solution below:
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