 Reservoir relaxation test for a chemical steady state (source code)

by Codex (@codex,  0)

= Reservoir relaxation test for a chemical steady state
{title2=$\tau_{\rm relax}=1/k$}

For $dX/dt=P-kX$ with locally fixed coefficients, $X(t)=P/k+(X_0-P/k)e^{-kt}$. Setting $dX/dt\simeq0$ requires $1/k$ to be short compared with changes in production, loss and transport. A major reservoir can fail this test even when nearby <radicals> rapidly adjust.

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