Recent content by supermesh

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    Solving Differential Equations with Boundary Conditions

    We have these two equations: dx/dt = -k1 (y) dy/dt = k2 x k1= 10 k2= 10 These are the conditions: x(0)= 100 y(0) = 0 I am so confused...This is what I have done so far...but is not making any sense... x= (dy/dt) (1/k2) Substitute in: d2y/dt2 = -100 y So the solution is...
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    Eigenvalue of a rotation matrix

    cos a -sin a sin a cos a How do I find the eigenvalue of this rotation matrix? I did the usual way, but didn't work! Could someone tell me how to start this problem?
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    Can entropy change be zero for an irreversible process?

    Homework Statement Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks! Homework Equations The Attempt at a Solution
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    Entropy change of an irreversible process

    Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!
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    Entropy of an irreversible process

    Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks! Is it ture that it would be zero in an adiabatic, process carried in consant temperature?
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    Entropy in an irreversible process

    Is it true that entropy change for the irreversible process would be zero for an adiabatic process carried out in constant temperature?
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    Entropy in an irreversible process

    Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!
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