Solution-Complete first-order reactions with rate constants

Complete first-order reactions with rate constants

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1. Imagine two competing first-order reactions with rate constants k1 > k2. In other words, the first reaction is faster. Show mathematically that, as you lower the temperature, the selectivity will normally increase. Hint: Selectivity can be measured as the ratio between two rate constants. A larger ratio of rate constants almost always gives a more selective reaction. You can use the relationship between k and ΔG‡ to make this proof. Which equation defines the relationship between k and ΔG‡?

Important Q: Why is this only an approximation? Under what conditions can the selectivityremain temperature-independent?

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Reference no: EM13293100

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Complete first-order reactions with rate constants

Reference no: EM13293100

Reference no: EM13293100

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