Consider the following reaction with its thermodynamic data: 2 A ( g ) + B 2 ( g ) → 2 AB ( g ) Δ H ° < 0 ; Δ S ° < 0 ; Δ G ° at 60 ° C = + 10 kJ Which statements about the reaction are true? (a) When Δ G = 1 , the reaction is at equilibrium. (b) When Q = 1 , Δ G = Δ G ° . (c) At 75°C, the reaction is definitely nonspontaneous. (d) At 100°C, the reaction has a positive entropy change. (e) If A and B 2 are elements in their stable states, S ° for A and B 2 at 25°C is 0. (f) K for the reaction at 60°C is less than 1.
Consider the following reaction with its thermodynamic data: 2 A ( g ) + B 2 ( g ) → 2 AB ( g ) Δ H ° < 0 ; Δ S ° < 0 ; Δ G ° at 60 ° C = + 10 kJ Which statements about the reaction are true? (a) When Δ G = 1 , the reaction is at equilibrium. (b) When Q = 1 , Δ G = Δ G ° . (c) At 75°C, the reaction is definitely nonspontaneous. (d) At 100°C, the reaction has a positive entropy change. (e) If A and B 2 are elements in their stable states, S ° for A and B 2 at 25°C is 0. (f) K for the reaction at 60°C is less than 1.
Solution Summary: The author explains the relationship between Delta G and Q (reaction quotient) for a reaction.
Consider the following reaction with its thermodynamic data:
2
A
(
g
)
+
B
2
(
g
)
→
2
AB
(
g
)
Δ
H
°
<
0
;
Δ
S
°
<
0
;
Δ
G
°
at
60
°
C
=
+
10
kJ
Which statements about the reaction are true? (a) When
Δ
G
=
1
, the reaction is at equilibrium. (b) When
Q
=
1
,
Δ
G
=
Δ
G
°
. (c) At 75°C, the reaction is definitely nonspontaneous. (d) At 100°C, the reaction has a positive entropy change. (e) If A and B2 are elements in their stable states, S° for A and B2 at 25°C is 0. (f) K for the reaction at 60°C is less than 1.
Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
a) For the reaction given in Part A, how much heat is absorbed when 2.70 mol of AA reacts? (the image attached)
b) For the reaction given in Part A, ΔS∘rxn is 39.0 J/K . What is the standard Gibbs free energy of the reaction, ΔG∘rxn?
Differentiate between Emf, Free Energy, and the Equilibrium Constant?
If the equilibrium constant of a reaction is Keq = 9.3 × 103 at 900 °C, what is the change in Gibbs free energy for this reaction (in kJ mol–1) at the indicated temperature?
R = 8.314 J K–1 mol–1
Chapter 16 Solutions
Owlv2, 4 Terms (24 Months) Printed Access Card For Masterton/hurley's Chemistry: Principles And Reactions, 8th
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell