For the assumed reaction X2 + 2Y2--------> 2XY2, write the rate equation in terms of rate of disappearance of Y2. (1 mark)
For the rate equation
X2 + 2Y2 → 2XY2
the rate equation in terms of disappearance of Y2 is written as
rate = - 1/2 d[Y2] / dt
or - 1/2 d[Y2] / dt = k[X2]a[Y2]b
where k is the rate constant for the overall reaction, a is the order of the reaction with respect to X2 and b is the order of reaction with respect to Y2.