C2 - Modeling quality change along the chain

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16 Terms

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Zero order degradation model

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Graph zero-order kinetics

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First order decay

  • Exponential decay

  • Example: thermal degradation of betalain

<ul><li><p>Exponential decay</p></li><li><p>Example: thermal degradation of betalain </p></li></ul><p></p>
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Zero order formation

  • Can be made into logarithmic form: lnq = lnq -kt

  • y-axis becomes logarithmic.

<ul><li><p>Can be made into logarithmic form: lnq = lnq -kt</p></li><li><p>y-axis becomes logarithmic. </p></li></ul><p></p>
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half-life

  • time needed to half a component.

<ul><li><p>time needed to half a component. </p></li></ul><p></p>
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Fractional conversion equation

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Fractional conversion graph

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Fractional conversion in logarithmic form

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Example fractional conversion kinetics reversible reaction

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Example fractional conversion kinetics irreversible reaction

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Weibull model

B = scale parameter (reciprocal of rate constant)

a = shape parameter

<p>B = scale parameter (reciprocal of rate constant)</p><p>a = shape parameter</p>
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Example weibull model

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Exponential growth

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Exponential growth graph

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rate constant

Doesnt change, because it is a CONSTANT

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