6) A certain reaction is first order, and 5 s after initiation of the reaction, 10 % of the reactant remains. Calculate a) the rate constant (k) for this reaction. k = b) the half-life of the reaction. t1/2 Workouts

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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6) A certain reaction is first order, and 5 s after initiation of the reaction, 10 % of the reactant
remains. Calculate
a)
the rate constant (k) for this reaction.
b)
the half-life of the reaction.
t1/2
Workouts
Transcribed Image Text:6) A certain reaction is first order, and 5 s after initiation of the reaction, 10 % of the reactant remains. Calculate a) the rate constant (k) for this reaction. b) the half-life of the reaction. t1/2 Workouts
Constants
Ideal gas constant:
= 8.314 J K mol-
= 0.083 dm bar K mol
= 0.082 dm atm K mol
Avogadro's constant: NA = 6.022x1023 mol-!
Boltzmann constant: k 1.38x1023 J K
Speed of light:
c = 3 x 10% m s
Planck's constant:
h = 6.626x1034 J s
1 bar = 105 Pa
1 atm = 101325 Pa
Relations
U = NKT²(n
= + k In Q
S =
%3D
A = -kT In Q
G = -NkT In)
R.
Transcribed Image Text:Constants Ideal gas constant: = 8.314 J K mol- = 0.083 dm bar K mol = 0.082 dm atm K mol Avogadro's constant: NA = 6.022x1023 mol-! Boltzmann constant: k 1.38x1023 J K Speed of light: c = 3 x 10% m s Planck's constant: h = 6.626x1034 J s 1 bar = 105 Pa 1 atm = 101325 Pa Relations U = NKT²(n = + k In Q S = %3D A = -kT In Q G = -NkT In) R.
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