At a particular temperature, two gases, A (represented by circles) and B (represented by squares), react to form products. The following molecular scenes represent starting mixtures for four experiments run at the same volume, labeled 1 through 4, with their initial rates (in mol L⁻¹s⁻¹):

The reaction order with respect to A and B respectively are:

The two most important theories of kinetics are:

In a study of rate of reaction

3X + 2Y + Z → 2XY + XZ

Solutions containing different initial concentrations of X, Y and Z were allowed to react. The time taken for the concentration of XY and XZ to reach a certain level was measured. The results are shown in the picture.

Using the results, the order of reaction with respect to X and Y respectively are:

Which of the following statements is true about the half life for a reaction?

The gaseous reaction

2X + Y → X₂Y

takes place in two steps:

i) X + Y → (fast step) XY,

ii) XY +X → (fast step) X₂Y

The rate equation is given by: