The concentration of compound X is measured at different tim…
The concentration of compound X is measured at different time intervals during the course of a chemical reaction. After plotting a graph of the concentration of X against time, shown below, the points labelled A-E on the graph have the following co-ordinates: A: x = 0 seconds; y = 0 mol L-1 B: x = 8 seconds; y = 0.37 mol L-1 C: x = 15 seconds; y = 0.49 mol L-1 D: x = 23 seconds; y = 0.63 mol L-1 E: x = 30 seconds; y = 0.60 mol L-1 What is the rate of the chemical reaction at point C? This question is worth 3 marks.