1. Explain and use the terms: order and half-life.
Week 15
Explain and use the terms: order and half-life.
Deduce the half-life of a first-order reaction from a concentration–time graph.
State that the half-life of a first-order reaction is independent of the concentration.
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2. Week 15 Measuring half-lives © Pearson Education Ltd 2009
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3. Week 15
Other concentration–time graphs: (a) zero-order, (b) first-order, (c) second-order
(a)
(b)
(c)
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4. Week 15
Deduce the order (0, 1 or 2) with respect to a reactant from a rate–concentration graph.
Determine, using the initial rates method, the order (0, 1 or 2) with respect to a reactant.
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5. Week 15
Orders and rate–concentration graphs: (a) zero-order, (b) first-order, (c) second-order
(a)
(b)
(c)
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