Reaction rate
(rate of chemical reaction)
The rate of reaction (the reaction rate, r) refers to the changes in the concentration of precursor substances or products when the time has changed.
The relationship between the concentration of precursor and chemical products with time.
While the reaction of the precursor molecules, it will change as the product. Make precursor concentrations decreased. Best product substance concentrations are rising, so we can keep track of the reaction to the operation.
• To measure the concentration of precursor
• Measuring the increased concentrations of substances, products
Note on measuring the rate of reaction is what is.
1. to make the mix (shake) the consistency.
2. When finished mix to do the measurement immediately.
3. to mix by hand to find the initial reaction rate (initial rate) really have very difficult, because when you are finished by hand, mix the measurement is made, it means that the time has passed for at least 3 seconds.
4. experiments must be performed at low concentrations ranging from family camping holiday modules lali level (mM) down.
Consider the reaction
If instead the concentration of the substance in the reaction is [A], [B] and [C], we will be able to find the reaction rate.
Birth rate of C products.
The rate of reduction of the precursor either B or A.
(Reduced rate put a minus sign)
1 sample of decomposed H2O2 is O2 and H2O.