2/26/25, 12:06 PM CHM142 Exam 2 latest version 2024/2025 With Correct Answers/professor verified Flashcards | Quizlet
CHM142 Exam 2 latest version 2024/2025 With
Correct Answers/professor verified
Save
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
Terms in this set (80)
Which of the following [A]-1 versus t
plots is linear for a
second-order reaction?
ln[A] versus t
[A]-1 versus t
[A] versus t
[A] versus t-1
[A]-1 versus t-1
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 1/25
,2/26/25, 12:06 PM CHM142 Exam 2 latest version 2024/2025 With Correct Answers/professor verified Flashcards | Quizlet
The reaction 0.341 M
2N2O(g) → 2N2(g) + O2(g)
is a first-order reaction. If
the initial concentration
N2O is equal to 0.372 M
and the rate constant is
7.54 x 10-3 M s-1, what will
the concentration be after
11.5 s?
The half-life for the first- 194 s
order reaction
A(g) → B(g) + C(g)
is 115 s at an initial
concentration of A of
0.286 M. How long will it
take for 69.0% of A to
react?
The rate constant for the 92 s
reaction
2NO2(g) → 2NO(g) +
O2(g)
is 0.17 M-1 s-1. What is the
half-life for this reaction
when the initial
concentration of NO2 is
0.0640 M?
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 2/25
, 2/26/25, 12:06 PM CHM142 Exam 2 latest version 2024/2025 With Correct Answers/professor verified Flashcards | Quizlet
The dependence of rate Ea = 65 kJ/mol; T = 400 ºC
constants on temperature
is given by the Arrhenius
equation
k = Ae-Ea/RT .
Under what conditions will
k have the largest value?
The activation energy for 1.2 x 10-3 M^-1 s^-1
the reaction
2HI(g) → H2(g) + I2(g)
is 184.0 kJ/mol. If the rate
constant for this reaction
is 2.70 x 10-4 M-1 s-1 at
327.0 ºC what would be
the rate constant at 352.0
ºC?
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 3/25
CHM142 Exam 2 latest version 2024/2025 With
Correct Answers/professor verified
Save
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
Terms in this set (80)
Which of the following [A]-1 versus t
plots is linear for a
second-order reaction?
ln[A] versus t
[A]-1 versus t
[A] versus t
[A] versus t-1
[A]-1 versus t-1
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 1/25
,2/26/25, 12:06 PM CHM142 Exam 2 latest version 2024/2025 With Correct Answers/professor verified Flashcards | Quizlet
The reaction 0.341 M
2N2O(g) → 2N2(g) + O2(g)
is a first-order reaction. If
the initial concentration
N2O is equal to 0.372 M
and the rate constant is
7.54 x 10-3 M s-1, what will
the concentration be after
11.5 s?
The half-life for the first- 194 s
order reaction
A(g) → B(g) + C(g)
is 115 s at an initial
concentration of A of
0.286 M. How long will it
take for 69.0% of A to
react?
The rate constant for the 92 s
reaction
2NO2(g) → 2NO(g) +
O2(g)
is 0.17 M-1 s-1. What is the
half-life for this reaction
when the initial
concentration of NO2 is
0.0640 M?
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 2/25
, 2/26/25, 12:06 PM CHM142 Exam 2 latest version 2024/2025 With Correct Answers/professor verified Flashcards | Quizlet
The dependence of rate Ea = 65 kJ/mol; T = 400 ºC
constants on temperature
is given by the Arrhenius
equation
k = Ae-Ea/RT .
Under what conditions will
k have the largest value?
The activation energy for 1.2 x 10-3 M^-1 s^-1
the reaction
2HI(g) → H2(g) + I2(g)
is 184.0 kJ/mol. If the rate
constant for this reaction
is 2.70 x 10-4 M-1 s-1 at
327.0 ºC what would be
the rate constant at 352.0
ºC?
https://quizlet.com/1011044446/chm142-exam-2-latest-version-20242025-with-correct-answersprofessor-verified-flash-cards/?new 3/25
