DEMO|TOPIC 06-CHEMICAL KINETICS, EQUILIBRIUM AND ENERGETICS

 

CHEMICAL KINETICS, EQUILIBRIUM AND ENERGETICS

RATE OF REACTION EQUILIBRIUM AND ENERGETICS

1. RATE OF CHEMICAL REACTION

This is the speed at which reaction is proceeding per unit time

It will be positive because product is increasing. The slope gives the rate of reaction

The SI unit = mol dm^-3S^-1

If the plot is reactant concentration against time the slope will be negative

NB: The units of rate depend on the units of reactant or products used

Example; In an experiment of determining rate, the following volumes of gas in the syringe were recorded in every 10 seconds.

Time (sec)	0	10	20	30	40	50	60	70	80
Volume (cm3)	0	18	30	40	48	53	57	58	58

1. Plot a graph of the volume shown on the syringe against time

2. Determine the rate of reaction

2. FACTORS AFFECTING RATE OF REACTION

1. Temperature

2. Concentration

3. Catalyst

4. Surface area

5. Pressure (gases)

6. Light

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