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Recent questions in Chemistry
0
votes
1
answer
47
views
Calculate the Gibbs free energy change for the chemical reaction: 2H2O (l) → 2H2 (g) + O2 (g)at a temperature of 298 K, given that the standard Gibbs free energies of formation are ΔGf°(H2O) = -237.13 kJ/mol, ΔGf°(H2) = 0 kJ/mol, and ΔGf°(O2) = 0 kJ/mol.
asked
Jan 23
in
Chemical thermodynamics
by
CeliaThomson
(
390
points)
0
votes
1
answer
56
views
Calculate the Gibbs free energy change at standard conditions for the reaction:2 H2(g) + O2(g) → 2 H2O(l)Given: ΔHºf[H2O(l)] = -285.8 kJ/mol, ΔHºf[H2(g)] = 0 kJ/mol, ΔHºf[O2(g)] = 0 kJ/mol, and ΔSº[H2O(l)] = -69.9 J/K·mol.
asked
Jan 23
in
Chemical thermodynamics
by
DorisMcWhae
(
490
points)
0
votes
1
answer
55
views
Calculate the Gibbs free energy change at standard conditions for the following synthesis reaction: CO2 (g) + 2H2 (g) → CH3OH (g)
asked
Jan 23
in
Physical Chemistry
by
JadeHellyer0
(
530
points)
0
votes
1
answer
51
views
Calculate the Gibbs free energy change at standard conditions for the combustion of propane:C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l) Given the standard enthalpy of formation data: ΔH°f(CO2(g)) = -393.5 kJ/mol ΔH°f(H2O(l)) = -285.8 kJ/mol ΔH°f(C3H8(g)) = -103.85 kJ/mol and the standard entropy data: S°(CO2(g)) = 213.6 J/(mol•K) S°(H2O(l)) = 69.9 J/(mol•K) S°(C3H8(g)) = 269.9 J/(mol•K)
asked
Jan 23
in
Chemical thermodynamics
by
Julio140610
(
510
points)
0
votes
1
answer
29
views
Calculate the Gibbs free energy change at 298 K for the reaction of hydrogen gas (H2) and chlorine gas (Cl2) to form hydrogen chloride gas (2HCl), given the following thermodynamic data:∆H°f (HCl) = -92.31 kJ/mol∆H°f (H2) = 0 kJ/mol∆H°f (Cl2) = 0 kJ/mol∆S°f (HCl) = -181.6 J/(mol*K)∆S°f (H2) = 130.7 J/(mol*K)∆S°f (Cl2) = 223.1 J/(mol*K)Also, determine whether the reaction is spontaneous at 298 K and if it will shift towards products or reactants.
asked
Jan 23
in
Chemical thermodynamics
by
ChristenaCru
(
270
points)
0
votes
1
answer
59
views
Calculate the Gibbs free energy change at 25°C for the reaction:2NO(g) + O2(g) → 2NO2(g)Given the standard Gibbs free energy of formation at 25°C for NO(g), O2(g), and NO2(g) are +86.4 kJ/mol, 0 kJ/mol, and +51.3 kJ/mol, respectively.
asked
Jan 23
in
Chemical thermodynamics
by
HildredCampo
(
710
points)
0
votes
1
answer
32
views
Calculate the Gibbs free energy change (ΔG) for the reaction:N2(g) + 3H2(g) ⇌ 2NH3(g)Given the standard Gibbs free energy of formation (ΔG°f) values at 298 K are:ΔG°f of NH3(g) = -16.6 kJ/molΔG°f of N2(g) = 0 kJ/molΔG°f of H2(g) = 0 kJ/molAssume ideal gas behavior for all gases involved in the reaction.
asked
Jan 23
in
Chemical thermodynamics
by
ChristenHold
(
390
points)
0
votes
1
answer
49
views
Calculate the Gibbs free energy change (ΔG) for the reaction below at 298 K given the following standard Gibbs free energy of formation data: 2H2(g) + O2(g) → 2H2O(l) ΔG°f (kJ/mol): H2(g) = 0 O2(g) = 0 H2O(l) = -237.14
asked
Jan 23
in
Chemical thermodynamics
by
MargaritaL74
(
250
points)
0
votes
1
answer
45
views
Calculate the Gibbs free energy change (ΔG) for the following chemical reaction at 25°C and constant pressure of 1 atm:2H2(g) + O2(g) → 2H2O(l)Given the following standard Gibbs free energy of formation values (ΔfG°) at 25°C:H2(g) = 0 kJ/molO2(g) = 0 kJ/molH2O(l) = -237 kJ/mol
asked
Jan 23
in
Chemical thermodynamics
by
JonathanTurn
(
430
points)
0
votes
1
answer
43
views
Calculate the Gibbs free energy change (∆G) for the combustion of methane, CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l), at standard conditions (298 K and 1 atm pressure) using appropriate thermodynamic data.
asked
Jan 23
in
Chemical thermodynamics
by
EttaMullah8
(
890
points)
0
votes
1
answer
35
views
Calculate the formal charge on the sulfur atom in the compound SO₃²⁻.
asked
Jan 23
in
Inorganic Chemistry
by
PatsyPemulwu
(
410
points)
0
votes
1
answer
44
views
Calculate the formal charge on the nitrogen atom in the molecule NO3-.
asked
Jan 23
in
Chemical bonding
by
YBIDani5971
(
490
points)
0
votes
1
answer
46
views
Calculate the formal charge on each atom in the nitrate ion (NO3^-).
asked
Jan 23
in
Inorganic Chemistry
by
JaneenZepps
(
370
points)
0
votes
1
answer
44
views
Calculate the formal charge on each atom in the molecule CO3^2-.
asked
Jan 23
in
Chemical bonding
by
MaxineDqh486
(
390
points)
0
votes
1
answer
44
views
Calculate the formal charge on each atom in SO4 2- ion.
asked
Jan 23
in
Inorganic Chemistry
by
AlejandraBel
(
550
points)
0
votes
1
answer
42
views
Calculate the formal charge of the sulfur atom in the sulfite ion (SO3) using the formula for formal charge calculation.
asked
Jan 23
in
Inorganic Chemistry
by
LamarAthaldo
(
210
points)
0
votes
1
answer
43
views
Calculate the formal charge of the oxygen atom and the chlorine atom in the perchlorate ion, ClO₄⁻. Show your work and explain how you arrived at your answer.
asked
Jan 23
in
Inorganic Chemistry
by
BrigidaDuque
(
810
points)
0
votes
1
answer
9
views
Calculate the formal charge of the nitrogen atom in the molecule NH3. Show your work and explain the significance of the result.
asked
Jan 23
in
Chemical bonding
by
EarleneOldha
(
230
points)
0
votes
1
answer
48
views
Calculate the formal charge of oxygen in the molecule SO2.
asked
Jan 23
in
Chemical bonding
by
DixieCouch44
(
430
points)
0
votes
1
answer
43
views
Calculate the formal charge of nitrogen in the nitrogen dioxide (NO2) molecule.
asked
Jan 23
in
Inorganic Chemistry
by
Jeanett70396
(
310
points)
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