Question 4.12:

The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:

Experiment	A/ mol L−1	B/ mol L−1	Initial rate/mol L−1 min−1
I	0.1	0.1	2.0 × 10−2
II	—	0.2	4.0 × 10−2
III	0.4	0.4	—
IV	—	0.2	2.0 × 10−2

Question 4.5:

Mention the factors that affect the rate of a chemical reaction.

Question 4.9:

The activation energy for the reaction

2HI_(g) → H₂ I_2(g)

is 209.5 kJ mol⁻¹ at 581K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy?

Question 4.4:

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?