C. RATES: Order of reaction, rate constant and mechanism
(i) Initial rates
1.Initial rate from graphs?
2.Use of 1/time for rate?
3.How to work out initial rates?
4.Initial rate from gas volume data
5.Rate of reaction from colorimetry data?
(ii) Rate constants
1.Rate constant: how to find units for k?
2.Rate constants: finding values online?
3.Rules for finding the units of the constant?
4.Units of the rate constant for 2nd order reaction?
(iii) Order
1.Second order in terms of mechanism?
2.How to find order from experimental data?
3.Predicting order from the reaction equation?
4.Working out order from table of initial rates?
5.Link between second order and mechanism
6.Change of concentration and order
7.Order from rate vs concentration
8.Finding order from experiments
9.Rate equation for manganate-oxalate reaction?
10.Manganate-oxalate: order with respect to catalyst?
11.Manganate-oxalate: order with respect to oxalate
(iv) Mechanism
1.How to identify the rate determining step?
2.Finding mechanism from rate equation?
3.Catalysts: do they appear in the rate equation?
4.Mechanism of bromate/bromide reaction
5.Catalytic decomposition of H2O2
More FAQs relating to these topics in the context of particular experiments may be found in the section on Practical Investigations.
updated: 07 August 2008
