Need help with the following questions? In the study of chemical kinetics one of

Question

Need help with the following questions?

In the study of chemical kinetics one of these factors does influence the rate Which one? Concentration glassware sound color Which one of the following substance will have hydrogen bonding as one of its intermolecular forces? Now Consider the following reaction and data What is the average rate of formation of I_2? 1.635 M/s 1.92 M/s 0.057 M/s 0.327 M/s 17.57 M/s The reaction 2 NO(g) = Cl_2 (g) rightarrow 2 NOCl (g) is second order with respect to [NO]. User a given set of conditions the internal rate of reaction is 6.20 times 10^-6 M/s. What is Tate of reaction if [NO] is doubled Which statement is true regarding the function of a catalyst in a chemical reaction? A catalyst provides an alternate mechanism for reaction A catalyst is not consumed by the reaction A catalyst increases the rate of a reaction All of the about are true.

Explanation / Answer

(10) concentration effects the kinetics while others in the list won't. ans (a)

(11)

Methanol has hydrogen and oxygen in the molecule and hence has intermolecular bonding via hydrogen bonding which keeps the compound in liquid state. While others are gas ans (c)

(12). Hydrogen bonding occurs when a high electronegative atom is present in the molecule such as oxygen,flourine and nitrogen bonded to hydrogen.

N-H bond is present only in d hence ans(d)

13.

At 5 sec. Conc = 1.35

At 15 sec. Conc = 1.92

Average rate = (1.92-1.35)M/10s

= .057 M/s

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