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Reaction kinetics
Page 8
Questions (589)
33) A first-order reaction has a rate constant of 0.33 min-1. It takes __________ min for the reactant
concentration to decrease
2 answers
asked by
JES
1,551 views
Ethane, C2H6, forms ·CH3 radicals at 700.°C in a first-order reaction, for which k = 1.98 h-1.
(a) What is the half-life for
3 answers
asked by
Sara
1,511 views
The activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. By what factor does the rate of this
5 answers
asked by
Anonymous
1,505 views
The following data were obtained at 25° C for the reaction [1+2+2]
C2H5Br + OH- C2H5OH + Br- Determine the rate law for the
4 answers
asked by
ranu
1,473 views
In a zero order reaction ,20% of the reaction complete in 10s .How much time it will take to complete 50% of the reaction?
4 answers
asked by
tanya
1,436 views
Could the equilibrium for the estrification reaction have been driven towards products by performing a
simple distillation
1 answer
asked anonymously
35 views
Give the integrated rate equation of a zero order,as well as as a first order reaction. Draw a typical graphs used to calculate
1 answer
asked anonymously
37 views
A reaction is said to be diffusion controlled when it occurs as fast as the reactants diffuse through the solution. The
4 answers
asked by
Kevin
1,348 views
a certain first order decomposition reaction has a half-life of 15.0 minutes. What is the rate constant for this reaction?
what
2 answers
asked by
Josh
1,261 views
2NO(g) + O2(g) --> 2NO2(g)
Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above
1 answer
asked by
Vanessa
1,260 views
A viral preparation was inactivated in a chemical bath. The activation process was found to be first order in virus
2 answers
asked by
Steven
1,206 views
how do you solve this problem?
consider the reaction A->B the rate of the reaction is 1.6 x 10^-2 M/s when the concentration of A
2 answers
asked by
Jin
1,197 views
nitrogen and hydrogen react in the haber process to form ammonia. All substances are in the gas phase. If 0.385atm of nitrogen
2 answers
asked by
michele
1,192 views
The degradation of CF3CH2F (an HFC) by OH radicals in the troposphere is first order in each reactant and has a rate constant of
4 answers
asked by
Rebecca
1,148 views
Which of the changes will form more CaCO3 (more moles CaCO3)?
CO2 + Ca(OH)2=CaCO3 +H2O delta H =-113kJ Write and explain if
1 answer
asked by
Akira 8
1,164 views
what is the rate of a first-order reaction that has a reactant concentration of 1.1M and a rate constant of 0.14/s?
2 answers
asked by
George
1,148 views
what affects the rate of a hydrohalogenation reaction?
1 answer
asked anonymously
21 views
The half-life of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say
2 answers
asked by
elvis
1,147 views
I have a problem like this:
CHCl3 + Cl2 = CCl4 +HCL This is the rate table: CHCL3 Cl2 Initial Rate .010 .010 .0035 .020 .010
3 answers
asked by
Nancy
1,130 views
The half-life of a first order reaction is determined to be 92.0 years. How long will it take for the concentration of the
3 answers
asked by
Chemistry
1,102 views
A reaction is 50% complete in 34.0 min.
1.) How long after its start will the reaction be 75% complete if it is first order?
4 answers
asked by
joe
1,103 views
At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation.
C2H5OH(g) CH3CHO(g) + H2(g)
1 answer
asked by
Jamie
1,077 views
Write rate law expressions?
2NOCl(g) --> 2NO(g) + Cl2(g) S2O3^2-(aq) + H^+(aq) --> HSO3^-(aq) + S(s) (Sulfur initially forms a
2 answers
asked by
Donna
1,093 views
The first-order rate constant for photodissociation of A is 5.97 1/h. Calculate the time needed for the concentration of A to
7 answers
asked by
mel
1,062 views
if u had used 40ml of water and 6g of ammonium nitrate ,rather than 20ml water n 3g ammonium nitrate. would u expect to get a
2 answers
asked by
hz
1,027 views
If a temperature increase from 11.0∘C to 22.0∘C doubles the rate constant for a reaction, what is the value of the
3 answers
asked by
Anonymous
1,024 views
what is the rate law of S2O8^2- + 3I- ---> 2SO4^2- + I3-
2 answers
asked by
Lauren
1,032 views
A reaction is peformed in which 50 ml of .400M silver nitrate and 75 ml of .100M hydrochloric acid are mixed together. The
2 answers
asked by
Lydia
997 views
The following data were obtained at 25° C for the reaction
C2H5Br + OH- ->C2H5OH + Br- Determine the rate law for the reaction
2 answers
asked by
Lalit
1,021 views
The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be its
concentration after 3
2 answers
asked by
elvis
1,020 views
The following table shows how the initial rate of this reaction depends on the concentrations of the two reactants
[NO] [O2]
7 answers
asked by
Autumn
998 views
A particular reactant decomposes with a half-life of 103 s when its initial concentration is 0.397 M. The same reactant
1 answer
asked by
katie
1,001 views
write an equation relating the concentration of a reactant A at t=0 to that of t=t for a first order reaction. Define all the
2 answers
asked by
wanex
981 views
At room temperature (about 20C) milk turns sour in about 64 hours. In a refrigerator at 3C, milk can be stored for about three
4 answers
asked by
Kenzie
998 views
The reaction A + B + C = products has a rate law rate = kA]C]2. Which of the following will result in an increase in the rate
5 answers
asked by
elvis
967 views
A first-order reaction has a half-life of 26.4 seconds. How long does it take for the concentration of the reactant in the
1 answer
asked by
Student
982 views
For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be
2 answers
asked by
Dom
947 views
At a given Temperature, the elementary reaction A<--->B in the forward direction is first order in A with a rate constant of
2 answers
asked by
Christina
975 views
Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at
2 answers
asked by
lisa
956 views
The rate constants for a reaction are found to be
k(-35 C) = 1.0 x 10-3 s-1 k(-25 C) = 2.0 x 10-3 s-1 At what temperature (in
21 answers
asked by
ss01
950 views
Consider the following reaction:
2H2S+SO2=2H20+S(s) A reaction mixture initially containing 0.500M H2S and 0.500M SO2 was found
2 answers
asked by
bf
964 views
A particular reaction has an activation energy of 51.6 kJ/mol-rxn. How much faster is the reaction at 50 degrees C versus 25
1 answer
asked by
bob
919 views
Which of the following statements is true if HI is formed in the following reaction?
H2(g) + I2(g) → 2HI(g) a. There are
1 answer
asked by
Ramon
924 views
The decomposition of ethane, C2H6, is a first-order reaction. It is found that it takes 212 seconds to decompose 0.00839 M C2H6
1 answer
asked by
Saoirse
957 views
The rate constants for a first order decay reaction are found to be:
k287.3∘C=1 x 10−4 s−1 k327.4∘C=19.2 x 10−4 s−1
3 answers
asked by
Anonymous
927 views
The Ksp value for PbS(s) is 8.0x10^-28.
By using this value with an electrode potential from Appendix E in the textbook,
2 answers
asked by
Mike
925 views
Write the rate equation for the relative disappearance of dinitrogen pentoxide. Write the rate equations for the relative
1 answer
asked by
Anonymous
912 views
I know how to find half-lives, but I have trouble finding the length of time it would take for the concrentration of X to
1 answer
asked by
Rachel
902 views
A first order reaction and a separate second order reaction both have the same rate of reaction. What is the effect on the rate
3 answers
asked by
michael
915 views
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described by
O3(g)+NO(g) -->
2 answers
asked by
Ceamus Angelina
885 views
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Parent Categories (13)
Acid-Base Chemistry
Acid-base reactions
Acids and Bases
Chemical Reactions
Chemistry
Enzymes
Equilibrium
Gases
Organic Chemistry
Physical Chemistry
Reactions
Spectroscopy
Thermodynamics