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Integrated Rate Law

Q. The reaction below: A → products is observed to obey first-order kinetics. Which of the following plots should give a straight line? a) In[A] vs t^-1 b) [A] vs t^-1 c) In[A] vs t d) In[A] vs k e) [A] vs t f) In[A] vs k^-1 g) [A] vs k

Solved • Mar 31, 2020

Integrated Rate Law

Q. A reaction is found to be first order with respect to one of the reactant species, A. When might a plot of In[A] vs time NOT yield a straight line?

Solved • Mar 31, 2020

Integrated Rate Law

Q. At a certain fixed temperature, the reaction below: A(g) + 2B(g) → AB2(g) is found be first order i the concentration of A and zeroth order i the concentration of B. The reaction rate constant is 0.05s^-1. If 2.00 moles of A and 4.00 moles of B are placed in a 1.00 liter container, how many seconds will elapse before the concentration of A has fallen to 0.30 mole.liter? a) 10.22 sec b) There is not enough information to answer. c) 2.83 sec d) 37.94 sec

Solved • Mar 31, 2020

Integrated Rate Law

Q. Consider the reaction below: A + B → C If it is 1st order in A and 0th order in B, a plot of In [A] vs time will have a slope that is... a) decreasing exponentially. b) increasing exponentially. c) slowly increasing.

Solved • Mar 31, 2020

Integrated Rate Law

Q. The gas phase reaction of nitrogen dioxide and carbon monoxide was found experimentally to be second-order with respect to NO2, and zero-order with respect to CO below 25°C. NO2 + CO → NO + CO2 Which one of the following mechanisms is consistent with the observed reaction order NO2 + 2CO → N + 2CO2: fast; N + NO2 → 2NO: slow or NO2 + NO2 → NO3 + NO: fast; NO3 + CO → NO2 + CO2: slow

Solved • Mar 29, 2020

Integrated Rate Law

Q. The dimerization of butadiene, , to form 1,5-cyclooctadiene is a second-order process that occurs when the diene is heated. In an experiment, a sample of 0.0087 mol of C4H6 was heated in a 1.0-L flask. After 660. seconds, 19% of the butadiene had dimerized. Calculate the rate constant for this reaction.

Solved • Mar 25, 2020

Integrated Rate Law

Q. How would the plot of pseudo first order reaction look? Draw an example plot.

Solved • Mar 22, 2020