Question

Classify the following statement as TRUE or FALSE:

A) The partial orders in a reaction's rate law (i.e. the orders of each individual participant in the rate law) must be integer numbers:

B) The partial orders in a reaction's rate law (i.e. the orders of each individual participant in the rate law) are never negative:

C) The rate constant of a reaction can be a negative number:

D) Every species that appear in the rate law of a reaction must be either a reactant or a product in that reaction:

E) Rate constants depend on temperature:

F) The rate law for the reaction C + D --> Products is always r=k[C][D] ;

G) Reactions 1 and 2 are each first order reactions with
k_{1} > k_{2}. Then it is true that
r_{1} > r_{2} (r is the rate of the
reaction:

H) For the elementary reaction A + B -> J it is always true that r=k[A][B] :

Answer #1

Answer the following questions True or False. Write “True” or
“False” in the blank.
1._________ The rate constant changes if the
concentrations of the reactant change.
2._________ If the concentration of a reactant
changes, the rate of the reaction always changes.
3._________ The coefficients of the overall reaction
tell us the order for each reactant.
4._________ The half-life for a first order reaction
does not depend on the initial concentration.
5._________ If the rate of a reaction over a long...

It is often stated in many introductory chemistry texts that
near room temperature, a reaction rate doubles if the temperature
increases by 10°. Calculate the activation energy of a reaction
that obeys this rule exactly. Would you expect to find this rule
violated frequently? [R=1.987 cal/mol•K=8.314 J/mol•K]?
2) An endothermic reaction A → B has a positive internal energy
change, ΔE, or enthalpy change,
ΔH. In such a case, what is the minimum value that the
activation energy can have?...

Mark the following as true or false, as the case may be. If a
statement is true, then prove it. If a statement is false, then
provide a counter-example.
a) A set containing a single vector is linearly independent
b) The set of vectors {v, kv} is linearly dependent for every
scalar k
c) every linearly dependent set contains the zero vector
d) The functions f1 and f2 are linearly
dependent is there is a real number x, so that...

(2) Classify the following statements as true (T), or false (F).
If you classify statement as false, correct it, or explain why it
is false.
(a) If given stereoisomer rotates the plane of polarized light
clockwise, its enantiomer rotates counter‐clockwise by exactly the
same magnitude
(b) If compound has one stereogenic center with S configuration,
it always rotates the plane of polarized light
counter-clockwise
(c) Molecule possessing stereogenic centers is always
chiral.
(d) Mixture of equal amounts of both enantiomers...

Write the rate law of the general equation given below and
explain what is meant by the overall order and individual reactant
order. aA + bB + cC → dD + eE A. Are the reaction order and
stoichiometric coefficient related to each other? B. Does the
reaction order have to always be a positive integer number? C. What
is the rate constant? D. Does the rate constant depend on
temperature? Be able to use stoichiometry to define a single...

Classify each of the following statements about the lab as True
or False.
The Beer's Law constant needed for the lab will be measured as
part of the experimental procedure.
[Fe3+]o refers to the final equilibrium concentration of Fe3+
ion in the reaction mixture.
The equilibrium reaction studied in this lab is: FeSCN2+ ⇐⇒ Fe3+
+ SCN- (⇐⇒ is being used in place of the equilibrium symbol)
The reaction will be monitored using spectrophotometry to
measure the absorbance of the...

A reaction occurs via the following sequence of elementary
steps. What is the reaction intermediate? 1st step: A + 2B → 2C 2nd
step: 2C → D Question 9 options: A) B B) There is no intermediate
C) C D) A E) D A reaction occurs via the following sequence of
elementary steps. What is the rate law based on this reaction
mechanism? 1st step: A + B → 2C + D slow 2nd step: C → E fast 3rd...

Learning Goal: To understand reaction order and rate constants.
For the general equation aA+bB?cC+dD, the rate law is expressed as
follows: rate=k[A]m[B]n where m and n indicate the order of the
reaction with respect to each reactant and must be determined
experimentally and k is the rate constant, which is specific to
each reaction. Order For a particular reaction, aA+bB+cC?dD, the
rate law was experimentally determined to be
rate=k[A]0[B]1[C]2=k[B][C]2 This equation is zero order with
respect to A. Therefore, changing...

Objectives: To be able to derive the necessary rate
equations for multistep reactions using rate limiting cases and the
steady-state approximation. Further we should be able to derive the
necessary half-life equations based on
1st order rate
kinetics.
Question 1. This is a consecutive reaction irreversible
first-rate reactions below
A →B →C →....
12
<Suppose that
And you are interested in isolating the largest possible amount
of B. Given the values of k1 and k2, derive an equation for the...

Nitric oxide (NO) can catalyze ozone destruction through the
catalytic process described below:
NO + O3 > NO2 + O2 (Reaction 1)
NO2 + O > NO + O2 (Reaction 2)
The reaction rate (how fast the reaction proceeds) is calculated
as the product of the reaction rate constant k, and the respective
concentrations of the reactants e.g. in the reaction A + B
products, the reaction rate is given by Rate = d[A]/dt = d[B]/dt =
k[A][B].
The reaction...

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