For a reaction under study, a graph of ln k versus 1/T (K−1) was
prepared. The...
For a reaction under study, a graph of ln k versus 1/T (K−1) was
prepared. The line of best fit to the data was determined to be: y
= -8.09 × 103 x + 31.5 . What is the activation energy, E a, for
this reaction in kJ/mol?
± The Arrhenius Equation
The Arrhenius equation shows the relationship between the rate
constant k and...
± The Arrhenius Equation
The Arrhenius equation shows the relationship between the rate
constant k and the temperature T in kelvins and
is typically written as
k=Ae−Ea/RT
where R is the gas constant (8.314 J/mol⋅K), A
is a constant called the frequency factor, and Ea
is the activation energy for the reaction.
However, a more practical form of this equation is
lnk2k1=EaR(1T1−1T2)
which is mathmatically equivalent to
lnk1k2=EaR(1T2−1T1)
where k1 and k2 are the rate constants for a
single reaction...
I need to find the slope and line of best fit
x
2,3,3,4,5,5,6
y
6,5,7,7,7,9,8,
I need to find the slope and line of best fit
x
2,3,3,4,5,5,6
y
6,5,7,7,7,9,8,
± The Arrhenius Equation
The Arrhenius equation shows the relationship between the rate
constant k and...
± The Arrhenius Equation
The Arrhenius equation shows the relationship between the rate
constant k and the temperature T in kelvins and
is typically written as
k=Ae−Ea/RT
where R is the gas constant (8.314 J/mol⋅K), A is
a constant called the frequency factor, and Eais
the activation energy for the reaction.
However, a more practical form of this equation is
lnk2k1=EaR(1T1−1T2)
which is mathmatically equivalent to
lnk1k2=EaR(1T2−1T1)
where k1 and k2 are the rate constants for a
single reaction at...
From her Beer's Law plot in part A, a student obtained a best
fit line of...
From her Beer's Law plot in part A, a student obtained a best
fit line of y=4.11 x 103x + 0.00 For part B, she made up a series
of solutions. One solution had the following composition and
absorbance: Vol 2.00 x 10-3 M Fe(NO3)3 (mL)= 5.00 Vol of 2.00 x
10-3 M KSCN (mL)= 5.00 Vol of 0.5 M HNO3 (mL)= 0.00 Absorbance at
450 nm= 0.629 What is the initial concentration of Fe(NO3)3 in the
solution (after mixing...
The equation of the best fit line relating x, the number of
absences, to y, the...
The equation of the best fit line relating x, the number of
absences, to y, the final grade is y with hat on top equals 0.449 x
minus 30.27. Student A missed 7 classes while student B missed 25
classes. Assuming that the scope of the model is between missing 0
classes to 30 classes, the predicted Final Grades for these grades
are as follows: Student A: 76.854; Student B: 27.264 Student A:
89.33; Student B: 50.235 Student A: 76.854;...
The Arrhenius type equation (I = exp (-E / kT), is solved by
graphing the natural...
The Arrhenius type equation (I = exp (-E / kT), is solved by
graphing the natural logarithm of the intensity TL (In (I), with
respect to the inverse of the temperature in degrees Kelvin
multiplied with the Boltzmann constant (1 / Tk ).
The value of the intersection on the y axis will correspond to In
(I), and the slope of the line will be equal to –E / k. The
activation energy calculation is finally:
E = -m *...