2007-03-11 04:34:57 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
rate of a reaction measures the rate of increase of concentration of the reactant or rate of decrease of concentration of the product and is always a positive number.rate of a reaction = change in concentration/time taken.so its si unit is mol/l/s and if the reacttion rate is taken over a period of time it is called average reaction rate and if over a short time interval where the time intervel is nearly 0 sec is called instantanious reaction rate
2007-03-11 04:55:22 · answer #1 · answered by einstein 2 · 0⤊ 0⤋
do the experiment, and get all the necessary data such as time, concentration of substances or volume of gas produced per time.
then plot a graph of concentration of substance or volume of gas against time.
then on the graph, draw a tangent to the curve, at t=0s,
then find out the tangents slope which is equal to the initial rate of reaction.
2007-03-11 04:41:09 · answer #2 · answered by Faisaltheonly1 2 · 0⤊ 0⤋