Chemical Forums
Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: elnino2206 on June 16, 2017, 01:23:29 PM
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I understand how to integrate d[A]/dT = k[A] to form the integrated first - order rate equation: [A] = [A]0 * exp(-kt).
However to 'check' this by differentiating d[A]/dT to form k[A], I am having trouble. So far I reach d[A]/dT = [A]0*-k*exp(-kt). Please may someone point me in the right direction?
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Your rate equation should be d[A]/dt = -k[A] to give the quoted integral equation for [A]. This is the first order rate law. d[A]/dt = k[A] would be an autocatalytic reaction.