RATE OF REACTION
INTRODUCTION;
The rate of reacton is how quickly the reaction take place When the reaction happen slowly, the rate of reaction is low When the reaction happen quickly, the rate of reaction is high How do we know the reaction happen slowly or quickly. To determine the rate of reaction, we can use suitable observable changes The examples of the observable changes that can be used are:
(i) mass of reactant used up (ii) mass of product produced (iii) total volume of gas released (iv) the formation of precipitate
REACTION BETWEEN CALCIUM CARBONATE WITH HYDROCHLORIC ACID
Total volume Of gas/cm3
60 +
50
+
+
+ 40 30
+
20 10
30
60
90
120
150
180
Time taken/s