Leaming troat: To cacculale dwitige and resalime teaction rates Consiat mes iebaten Poactoin rowe san be dotraded cithes as the incrouse in the concentratcon of a profluct per ueve lime or as the 2H2PO2(a)P2P3(p)+H4O() daccesa of the concentriton of a reviciant per unit Usng the inlonriaton in the folowng table. calculate the average fale of Jimafizn ef I line. Dy dotritons, reactian rate is a positwe quant ty in the matton X2Y. for doumpin, Y is bein? producted twice as ars as X is consurtiod and thus rate of X=31(rate of Y) Fach mate can bo dipemsend as ine change in Eohcertiation over the change in tme ot tX=21(tY])Learnine Goal: Learning Goal: fo eaticulain average and thelatwe reacton tates Comman twrieaction Peoctam rab can te detred efper as the inorease in the coscentration of a proded per unit tritie or as else decresse of the conceriabon of a iedctast per unit tomaton of Bieg darng the same time interval? in the reaction X2 Y sor esample Y is being Eupress your answer wath the appropriase units. pooduced tionce at lat as X is consesed and this View Arailabet Hintiv) rate of X=41( rate of Y) Fact rabe can be uxpeessod as the change in concestiation over the dvange in time, at t[X]=21(I[Y])Leinding tioat Figute Oretall reaction cepler and rate-tenslent uxis it +1+2=23 Bares PearkonAnalyzing a specific reaction Consider the solowing ieaction quation aA+bBCC+dD NO+O3+NO2+O2,rate=K[NO][O3] cessed as foltows: Express your answer as an integer. View Available Hint(s) Part B What are the units of the fate constant k for this reactioe?Activation Energy and Catalysts Learning Goal: To help you understand how to interpret potential energy diagrams. The graphs shown here are called potential energy diagrams. They show the potential energy of a system as it changes from reactants to products. The first graph shows the uncatalyzed reaction (Figure 1 ); the second graph shows the catalyzed reaction ( Figure 2). Figure 1 of 2 Copyright 32023 Pearson E2 of 2Activation energy The activation enorgy of a reaction is the difference in energy between the reactants and the activated carmplex Activaticn eneigy is alwaysi a positwe number Part A 2 of 2 What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units.Part B What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) x Incorrect; Try Again; 5 attempts remaining Enter your answer using units of enthalpy.Part C What is the value of the activation energy of the uncatalyzed reaction in reverse? Express your answer as an integer and include the appropriate units. View Available Hint(s) x Incorrect; Try Again; 5 attempts remaining Enter your answer using units of enthalpyOrder and rate law of a reaction The overall order of an elementary step directly corresponds to its molecularity. Both steps .

1. Leaming troat: To cacculale dwitige and resalime teaction rates Consiat mes iebaten Poactoin
rowe san be dotraded cithes as the incrouse in the concentratcon of a profluct per ueve lime or as
the 2H2PO2(a)P2P3(p)+H4O() daccesa of the concentriton of a reviciant per unit Usng the
inlonriaton in the folowng table. calculate the average fale of Jimafizn ef I line. Dy dotritons,
reactian rate is a positwe quant ty in the matton X2Y. for doumpin, Y is bein? producted twice as
ars as X is consurtiod and thus rate of X=31(rate of Y) Fach mate can bo dipemsend as ine
change in Eohcertiation over the change in tme ot tX=21(tY])Learnine Goal: Learning Goal: fo
eaticulain average and thelatwe reacton tates Comman twrieaction Peoctam rab can te detred
efper as the inorease in the coscentration of a proded per unit tritie or as else decresse of the
conceriabon of a iedctast per unit tomaton of Bieg darng the same time interval? in the reaction X2
Y sor esample Y is being Eupress your answer wath the appropriase units. pooduced tionce at lat
as X is consesed and this View Arailabet Hintiv) rate of X=41( rate of Y) Fact rabe can be
uxpeessod as the change in concestiation over the dvange in time, at t[X]=21(I[Y])Leinding tioat
Figute Oretall reaction cepler and rate-tenslent uxis it +1+2=23 Bares PearkonAnalyzing a specific
reaction Consider the solowing ieaction quation aA+bBCC+dD NO+O3+NO2+O2,rate=K[NO][O3]
cessed as foltows: Express your answer as an integer. View Available Hint(s) Part B What are the
units of the fate constant k for this reactioe?Activation Energy and Catalysts Learning Goal: To
help you understand how to interpret potential energy diagrams. The graphs shown here are
called potential energy diagrams. They show the potential energy of a system as it changes from
reactants to products. The first graph shows the uncatalyzed reaction (Figure 1 ); the second
graph shows the catalyzed reaction ( Figure 2). Figure 1 of 2 Copyright 32023 Pearson E2 of
2Activation energy The activation enorgy of a reaction is the difference in energy between the
reactants and the activated carmplex Activaticn eneigy is alwaysi a positwe number Part A 2 of 2
What is the value of the activation energy of the uncatalyzed reaction? Express your answer to
three significant figures and include the appropriate units.Part B What is the value of the enthalpy
change of the uncatalyzed reaction? Express your answer to three significant figures and include
the appropriate units. View Available Hint(s) x Incorrect; Try Again; 5 attempts remaining Enter
your answer using units of enthalpy.Part C What is the value of the activation energy of the
uncatalyzed reaction in reverse? Express your answer as an integer and include the appropriate
units. View Available Hint(s) x Incorrect; Try Again; 5 attempts remaining Enter your answer using
units of enthalpyOrder and rate law of a reaction The overall order of an elementary step directly
corresponds to its molecularity. Both steps in this examplo are second order because they are
each bimolecular. Furthermore, the rate law can be determined directly from the number of each
type of. molecule in an elementary step. For example, the rate law for step 1 is rate=k[NO2]2 The
exponent 2n is used because the reaction involves two NO2 molecules. The rate law for step 2 is
rate=k[NO3]1[CO]1=k[NO3][CO] because the reaction involves only one molecule of each reactant
the exponents are omitted. Analyzing a new reaction Consider the following elementary steps that
make up the mechanism of a certain roaction: 1.2XY+Z2.Y+2LM+Zais thought to 1.2XY+Z2.Y+2L
M+Z g)+NO(g) +NO2(g) nentary step. z called the reaction Part A What is the overall reaction?
Express your answer as a chemical equation. View Available Hint(s) +CO2(g) NO2 appears both
therefore it cancels O3 is called a at 2 molecules of first step and 1 A chemical reaction does not
occur for this ques ict of the second olecule of NO2 asthis reaction is thought to o steps (g)NO3(g)

2. +NO(g) Part B called an elementary step Which species is a reaction intermediate? tary steps are
called the reaction. View Avaliable Hint(s) eaction is (g)NO(g)+CO2(g) nentary steps NO3 appears
both as a reactant, therefore it cancels cal equation. NO3 is called a Also notice that 2 molecules
of eaclants of the first step and 1 pears as product of the second eaves only 1 molecule of NO2 as
equation. roper term for "how the molecules For example, step 1 is bimolecular the collision of two
molocules. Step ir tor the same reason. Unimolecular Part C riy one molecuie in the reactants:
aons among three molecules can (P) PearsonWhat is the rate law for step 1 of this reaction?
Express your answer in standard MasteringChemistry notation. For example, if the rate law is k[A][
C]3 type k[A] [C]3. View Available Hint(s) Rate = Part D What is the rate law for step 2 of this
reaction?What is the rate law for step 2 of this reaction? Express your answer in standard
MasteringChemistry notation. For example, if the rate law is k[A][C]3 type k[A] [c]n3. View
Available Hint(s) Rate =The rate constant of a chemical reaction increased from 0.100s1 to 3.30s1
upon raising the temperature from 25.0C to 49.0 C Part A Calculate the value of (T11T21) where T
1 is the initial temperature and T2 is the final temperature Express your answer
numerically.Cakulate the value of ln(k1k2) where k1 and k2 correspond to the rate constants at the
initial and the final temperatures as defined in part A Express your answer numerically.What is the
rate law for step 2 of this reaction? Express your answer in standard MasteringChemistry notation.
For example, if the rate law is k[A][C]3 type k[A] [c]n3. View Available Hint(s) Rate =The rate
constant of a chemical reaction increased from 0.100s1 to 3.30s1 upon raising the temperature
from 25.0C to 49.0 C Part A Calculate the value of (T11T21) where T1 is the initial temperature
and T2 is the final temperature Express your answer numerically.Cakulate the value of ln(k1k2)
where k1 and k2 correspond to the rate constants at the initial and the final temperatures as
defined in part A Express your answer numerically.What is the activation energy of the reaction?
Express your answer numerically in kilojoules per mole.The rate constant of a chemical reaction
increased from 0.100s1 to 3.00s1 upon rasing the temperature from 250.005 to 530 0C Part A
Calculate the value of (T21T11) where T1 is the intial temperature and T2 is the final femperature:
Express your answer numerically.Calculate the value of ln(k2k1) where k1 and k2 correspond to
the rate constants at the initial and the final temperatures as defined in part A Express your
answer numerically.What is the activation energy of the reaction? Express your answer
numerically in kilojoules per mole.A certain reaction has an activation energy of 60.0kJmol1 and a
frequency factor of A1=4.201012Lmol1s1 What is the rate constant, k, of this reaction at 23.0C ?
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either
with a multiplication dot (asterisk) or a dash. View Available Hint(s) The linear form of the
Arrhenius equation The.Armenius equation can be rearranged to a form that resembles the
equation for a straight linePart B afiect the rate of a temperature, (orientation), and An unknown
reaction was cbserved, and the followno data were collected. changes with ie tactors that allect ed
in an equation 1 of 1 Determine the activation energy for this reaction. Express your answer with
the appropriate units.What is the rate constant at 681C ? Express your answer to three significant
figures.Draw the Lewis structure for NO Draw the molecule by placing atoms on the grid and
connecting them with bonds. Include all nonbonding olectrons View Available Hint(s)Draw the
Lewis structure for NOF. Nitrogen is the central atom Draw the molecule by placing atoms on the
grid and connecting them with bonds. Include all lone pairs of electrons. View Available

3. Hint(s)Based on the activation energies and frequency factors, rank the following reactions from
tastast to slowest reaction rate assuming they are all at the same temperature and that each starts
with the same initial concentration Rank from fastest to slowest reaction rate. To rank items as
equivalent, overlap them.A certain reaction with an activation energy of 115kJ/mol was run at 545
K and again at 565K What is the matio of f at lie higher temperature to f at the lower temperature?
Express your answer numerically using one significant figure.Based on the activation energies and
frequency factors, rank the following teactions from fastest to slowest regction mate assuming thoy
are all at the same temperature and that each starts with the same initial concentration Rank from
fastest to slowest reaction rate. To rank items as equivalent, overlap them. View Available Hint(s)
Ea=50kJ/molA=1.9107s1A certain reaction with an activation energy of 115kJ/mol was run at 545
K and again at 565K. What is the ratio of f at lhe higher temperature to f at the lower temperature?
Express your answer numerically using one significant figure.