Please explain how these questions are done with the exception to number 2. At20

Question

Please explain how these questions are done with the exception to number 2.

At200BC, in the reaction below, the mol3r concentration of A was 99 M 3fter 31 s 3nd 44 M after 97 s. What is the average r3te of consumption of A in M/s? Do not enter units with your answer. A catalyzed reaction may occur by a different mechanism than the same uncatalyzed reaction Initial rate data were obtained for the following reaction: What is the order with respect to reactant B? Please note that"?" in rate values should be "x" (times). In the reaction. A rightarrow Products, the initial concentration of A is 1.60 M, and 45 s later it is 1.20 M. What is the initial rate of this reaction in M s-1?

Explanation / Answer

Question 1

rate of consumption is = (C2-C1)/(T2-T1) = (99-44)/(97-31) = 0.833

Question 2

When we add a catalyst to a reaction it can involve in the reaction but finally the same amount of catalyst shoul be retained,

which means the reaction may be different to the reaction in which catalyst is not used

Question 3

In experiment 1 and 3 concentration of A is kept constant and B's concentration is changed and speed of reaction is changed that is speed is A's dependent

In experiment 1 and 2 concentration of B is kept constant and A's concentration is changed and speed of reaction is changed that is speed is B's dependent

that is it is 2 concentrations dependent and it is a second order reaction

Question 4

rate of consumption = (C2-C1)/(T2-T1) = (1.6-1.2)/(45-0) = 0.00888 =8.88*10^(-3)

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