Imagine that for the unimolecular reaction A 
⟺
B, the value of 
ΔG° is -1.17
kcal/mol. If equimolar initial amounts of A and B react at 25 °C,
what fraction of the molecules will be B molecules once the system
has come to equilibrium?
Homework Answers
ΔG° = -1.17 kcal/mol
ΔG° = - R T ln K
- 1.17 x 10^3 = - 1.987 x 298 x ln K
Keq = 7.214
fraction of B molecules = Keq / Keq + 1
= 7.214 / 7.214 + 1
fraction of B = 0.88
= 88 %
Add Answer to:
Imagine that for the unimolecular reaction A ⟺
B, the value of ΔG° is -1.17
kcal/mol....
The ΔG°’ value for the malate DH reaction is +7.10 kcal/mol, and the ΔG°’ value for...
The ΔG°’ value for the malate DH reaction is +7.10 kcal/mol, and the ΔG°’ value for the citrate synthase reaction is -7.53 kcal/mol. Determine Keq for the combined, coupled reaction (e.g., L-malate <--> citrate, plus ancillary cofactors, reactants, and side-products), and compare this value to Keq for the malate DH reaction alone. By what factor do you have to multiply the Keq of the malate DH reaction to equal the Keq for the coupled reaction. Assume a temperature of 37...
Consider the following equilibrium: 2NO2g N2O4g ΔG=−5.4kJ Now suppose a reaction vessel is filled with 7.88atmof...
Consider the following equilibrium:
2NO2g N2O4g ΔG=−5.4kJ
Now suppose a reaction vessel is filled with 7.88atmof
dinitrogen tetroxide N2O4 at 1.°C
Answer the following questions about this system:
Under these
conditions, will the pressure of
N2O4
tend to rise or fall?
rise
fall
Is it possible to
reverse this tendency by adding
NO2
?
In other words, if you said the pressure of
N2O4
will tend to rise, can that be changed to a tendency to
fall by adding
NO2...
Part The balanced reaction for the combustion of ethane is shown in the table. You allow 3.3 mol of ethane (CH) to...
Part The balanced reaction for the combustion of ethane is shown in the table. You allow 3.3 mol of ethane (CH) to react with 4.1 mol oxygen (O2). using the Simulation, to indicate the amounts of all chemical species for the initial, change, and final conditions Drag the appropriate amounts to their respective targets. View Available Hint(s) We were unable to transcribe this image
The conversion of methane into products that contain two or more carbon atom, such as ethane,...
The conversion of methane into products that contain two or more
carbon atom, such as ethane, C2H2, is a very
important industrial chemical process. In principle, methane can be
converted directly into ethane and hydrogen.
(1) 2CH4(g) C2H6(g) +
H2(g)
In practice, however, this reaction is carried out in the
presence of oxygen:
(2) 2CH4(g) + 1/2 O2(g) C2H6(g) +
H2O(g)
a) Using the thermodynamic data at 298K, determine ΔG° for each
reaction.
ΔGf° (kJ/mol)
ΔGf° (kJ/mol)
CH4(g)
H2(g)
0...
The free energy (AG) for a reaction under a set of initial conditions/concentrations is -14.3 kcal/mol....
The free energy (AG) for a reaction under a set of initial conditions/concentrations is -14.3 kcal/mol. The standard free energy (AG°) of this reaction is -6.0 kcal/mol. Given this information, what will be the value of the ratio of the reaction quotient (Q) to the equilibrium constant (Kea)? In other words, what will Q/Keg equal? Assume a temperature of 25°C. The value of the gas constant is 1.987 × 10-3 kcal/K-mol. To make your answer feasible to enter in Canvas,...
A (aq)-->enzyme<--B (aq) The ΔG°\' of the reaction is -6.220 kJ ·mol–1. Calculate the equilibrium constant for the...
A (aq)-->enzyme<--B (aq) The ΔG°\' of the reaction is -6.220 kJ ·mol–1. Calculate the equilibrium constant for the reaction. (Assume a temperature of 25° C.) What is ΔG at body temperature (37.0° C) if the concentration of A is 1.5 M and the concentration of B is 0.75 M?
15. Consider the reaction 2 NO2(g) N2O4(g) . (a) Using Gf N2O4(g) = 97.79 kJ/mol and...
15. Consider the reaction 2 NO2(g)
N2O4(g) .
(a) Using Gf
N2O4(g) = 97.79 kJ/mol and Gf NO2(g)
= 51.3 kJ/mol, calculate G° at 298 K.
kJ
(b) Calculate G at 298 K if the partial pressures of
NO2 and N2O4 are 0.35 atm and 1.60
atm, respectively.
kJ
16. Consider the reaction given below.
H2(g) + F2(g)
2 HF(g)
(a) Using thermodynamic data from the course website, calculate
G° at 298 K.
kJ
(b) Calculate G at 298 K...
Calculate rxn for the below combustion reaction, determine if entropy increases or decreases. Assume 1 mol...
Calculate
rxn for the below combustion reaction, determine if
entropy increases or decreases. Assume 1 mol of substance at 25
Celsius.
C3H8(g) + 5O2(g)
3CO2(g) + 4H2O(l)
Delta G of C3H8 = -23.4 kj/mol
Delta G of O2 = 0 kj/mol
Delta G of CO2 = -394.36 kj/mol
Delta G of H2O = -237.1 kj/mol
We were unable to transcribe this imageWe were unable to transcribe this image
A critical reaction in the production of energy to do work or drive chemical reactions in...
A critical reaction in the production of energy to do work or
drive chemical reactions in biological systems is the hydrolysis of
adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as
described by
ATP(aq)+ H2O(l)
ADP(aq) + H2PO4(aq)
for which ΔG°rxn = –30.5 kJ/mol at 37.0 °C and pH 7.0. Calculate
the value of ΔGrxn in a biological cell in which [ATP] = 5.0 mM,
[ADP] = 0.80 mM, and [HPO42–] = 5.0 mM.
Grxn
= ___ KJ/mol
Is the hydrolysis...
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vapori...
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vaporization process bromine. Show calculations C. Calculate the energy invested \ emitted by the evaporation of 3.2 gr of bromine. Show calculations. (Explain how you determined whether the energy is invested or emitted in this process). D.A Reaction is given: ½H2(g) + ½Br2(l) --> HBr(g) Ho...
Consider the following equilibrium:
2NO2g N2O4g ΔG=−5.4kJ
Now suppose a reaction vessel is filled with 7.88atmof
dinitrogen tetroxide N2O4 at 1.°C
Answer the following questions about this system:
Under these
conditions, will the pressure of
N2O4
tend to rise or fall?
rise
fall
Is it possible to
reverse this tendency by adding
NO2
?
In other words, if you said the pressure of
N2O4
will tend to rise, can that be changed to a tendency to
fall by adding
NO2...
Part The balanced reaction for the combustion of ethane is shown in the table. You allow 3.3 mol of ethane (CH) to react with 4.1 mol oxygen (O2). using the Simulation, to indicate the amounts of all chemical species for the initial, change, and final conditions Drag the appropriate amounts to their respective targets. View Available Hint(s) We were unable to transcribe this image
The conversion of methane into products that contain two or more
carbon atom, such as ethane, C2H2, is a very
important industrial chemical process. In principle, methane can be
converted directly into ethane and hydrogen.
(1) 2CH4(g) C2H6(g) +
H2(g)
In practice, however, this reaction is carried out in the
presence of oxygen:
(2) 2CH4(g) + 1/2 O2(g) C2H6(g) +
H2O(g)
a) Using the thermodynamic data at 298K, determine ΔG° for each
reaction.
ΔGf° (kJ/mol)
ΔGf° (kJ/mol)
CH4(g)
H2(g)
0...
The free energy (AG) for a reaction under a set of initial conditions/concentrations is -14.3 kcal/mol. The standard free energy (AG°) of this reaction is -6.0 kcal/mol. Given this information, what will be the value of the ratio of the reaction quotient (Q) to the equilibrium constant (Kea)? In other words, what will Q/Keg equal? Assume a temperature of 25°C. The value of the gas constant is 1.987 × 10-3 kcal/K-mol. To make your answer feasible to enter in Canvas,...
15. Consider the reaction 2 NO2(g)
N2O4(g) .
(a) Using Gf
N2O4(g) = 97.79 kJ/mol and Gf NO2(g)
= 51.3 kJ/mol, calculate G° at 298 K.
kJ
(b) Calculate G at 298 K if the partial pressures of
NO2 and N2O4 are 0.35 atm and 1.60
atm, respectively.
kJ
16. Consider the reaction given below.
H2(g) + F2(g)
2 HF(g)
(a) Using thermodynamic data from the course website, calculate
G° at 298 K.
kJ
(b) Calculate G at 298 K...
Calculate
rxn for the below combustion reaction, determine if
entropy increases or decreases. Assume 1 mol of substance at 25
Celsius.
C3H8(g) + 5O2(g)
3CO2(g) + 4H2O(l)
Delta G of C3H8 = -23.4 kj/mol
Delta G of O2 = 0 kj/mol
Delta G of CO2 = -394.36 kj/mol
Delta G of H2O = -237.1 kj/mol
We were unable to transcribe this imageWe were unable to transcribe this image
A critical reaction in the production of energy to do work or
drive chemical reactions in biological systems is the hydrolysis of
adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as
described by
ATP(aq)+ H2O(l)
ADP(aq) + H2PO4(aq)
for which ΔG°rxn = –30.5 kJ/mol at 37.0 °C and pH 7.0. Calculate
the value of ΔGrxn in a biological cell in which [ATP] = 5.0 mM,
[ADP] = 0.80 mM, and [HPO42–] = 5.0 mM.
Grxn
= ___ KJ/mol
Is the hydrolysis...
Most questions answered within 3 hours.
-
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 1 minute ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 9 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 17 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 16 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 19 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 20 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 24 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 39 minutes ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 41 minutes ago -
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 1 hour ago -
Consider a labor market in which LD = 400 – 4W and LS = 250 +...
asked 1 hour ago -
Let’s say you are teaching a typically-developing young child
how to eat with a spoon. Describe...
asked 58 minutes ago