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At what temperature will it change between spontaneous and nonspontaneous? e. What is K for the...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction the equilibrium will shift if: N_2 is added? H_2 is removed? NH_3 is added? NH_3 is removed? the volume of the container is decreased? the pressure is increased by adding Argon gas? the reaction is cooled? equal number of moles of H_2 and NH_3 are added? a catalyst is added The equilibrium constant for the following reaction is 5.0 at 400 degree C. CO_(g)...
Solve For a process at constant temperature and pressure, if DeltaG is positive, the process is,if...
Solve
For a process at constant temperature and pressure, if DeltaG is positive, the process is,if DeltaG is negative, the process is, and if DeltaG is zero, the process is. a. at equilibrium, spontaneous, nonspontaneous b. nonspontaneous, spontaneous, at equilibrium c. spontaneous, at equilibrium, nonspontaneous d. spontaneous, nonspontaneous, at equilibrium e. none of these 18. For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. DeltaSdegree > 0, DeltaHdegree > 0...
The equilibrium constant k_e for the reaction C_6 H_5 COOH (aq) C_6 H_5 COO (aq) +...
The equilibrium constant k_e for the reaction C_6 H_5 COOH (aq) C_6 H_5 COO (aq) + H^+ (aq) is given by. [C_6 H_5 COOH]/[C_6 H_5 COO^-][H^+] [C_6 H_5 COO^-][H^+] [C_6 H_5 COO^-][H^+]/[C_6 H_5 COOH] [C_6 H_5 COO^-][H^+]/C_6 H_5 COOH] The expression of K_p for the reaction 2NaHCO_3 (s) Na_2 CO_3 (s) + CO_2 (g) + H_2 O (g) is. Kc for the reaction 2CO(g) + O_2 (g) 2CO_2 (g) is 2.24 Times 10^22 a t 1273 degree C. K_p for...
Gibbs free energy change AG is defined as AG= AH-TAS. For a spontaneous process, AG<0. For...
Gibbs free energy change AG is defined as AG= AH-TAS. For a spontaneous process, AG<0. For a. reversible reaction at equilibrium, AG = 0. The equilibrium constant K of the reversible reaction is relate- AG"=-RTIn(K). Symbol 40" refers to thermodynamics standard condition: 298 K and 1 atm. Exercise:consider the following reaction: bo:pfoiex 2 HNO:(aq)+NO(g)- 3 NO2(g) + H2O(I) AH=+136.5 kJ; AS = +287.5 J/K a. Below what temperature does the following reaction becomes nonspontaneous? niliod sis anotsole s ob io...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a b...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a battery without plugging it in. C. Salt dissolving in water d. Freezing a popsicle at room temperature 2. For the following equilibrium constant values, indicate whether the process is spontaneous or nonspontaneous AND whether the value of ArxnGº is greater than less than or equal to zero by circling the appropriate response. Equilibrium Constant Value Is the reaction...
For the reaction 3C_2R_2(g) = C_6R_6(I), the change in the change in entropy is -301.kJ and...
For the reaction 3C_2R_2(g) = C_6R_6(I), the change in the change in entropy is -301.kJ and the change in entropy is -405. J/K. Calculate the change in free energy at 33.degree C and comment on the reaction spontaneity. Units: kJ. a. 177, nonspontaneous b. 92 kJ, nonspontaneous c. -177, spontaneous d. -190 kJ, spontaneous What is the molar solubility of AgCl in an aqueous solution containing 0.220 M NH_3? Units: M AgCl(s) = Ag^+(aq) + Cl^-(aq) K = 1.60 times...
IF ÄH and ÄS are both negative for a reaction, then the reaction is: a. nonspontaneous...
IF ÄH and ÄS are both negative for a reaction, then the reaction is: a. nonspontaneous at low temperatures and spontaneous at high temperatures. b. spontaneous at low temperatures and nonspontaneous at high temperatures. C. spontaneous at all temperatures. d. nonspontaneous at all temperatures. e. none of the choices given above Suppose that AH° = +95.1 kJ and AS° =-0.192 kJ/K for a chemical reaction. What is AG at 600 K? a. +20.1 kJ b.-20.1 kJ c. +152.3k) d.+210.3 kJ...
36.(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship...
36.(a) Choose all of the statements from below which
correctly describe issues pertaining to the
relationship between the emf of a reaction and its Gibbs free
energy change.
The Gibbs free energy change and emf values of a reaction have
opposite algebraic signs (+ vs. -).
A Gibbs free energy change involves moles of substances whereas an
emf involves coulombs of electrons.
Electron stoichiometry must be used to interconvert a Gibbs free
energy change and a reaction emf.
A coulomb...
Question 7 Below what temperature does the following reaction become nonspontaneous? 12(s) + Cl2(g)--2 ICI(s) ΔΗ...
Question 7 Below what temperature does the following reaction become nonspontaneous? 12(s) + Cl2(g)--2 ICI(s) ΔΗ +36.0 kJ: ΔS +158.8 J/K O 227 K O This reaction is spontaneous at all temperatures. O 313 K O This reaction is nonspontaneous at all temperatures. O 128 K
Need help finding K When the oxide of generic metal M is heated at 25.0 degree...
Need help finding K
When the oxide of generic metal M is heated at 25.0 degree C, only a negligible amount of M is produced. MO_2(s) rightleftharpoons M(s) + O_2(g) Delta CO_2=291.4 kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical equation of this coupled process? Show that the reaction is in equilibrium, include physical states, and represent graphite as C(s). What is the thermodynamic equilbrium constant for...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction the equilibrium will shift if: N_2 is added? H_2 is removed? NH_3 is added? NH_3 is removed? the volume of the container is decreased? the pressure is increased by adding Argon gas? the reaction is cooled? equal number of moles of H_2 and NH_3 are added? a catalyst is added The equilibrium constant for the following reaction is 5.0 at 400 degree C. CO_(g)...
Solve
For a process at constant temperature and pressure, if DeltaG is positive, the process is,if DeltaG is negative, the process is, and if DeltaG is zero, the process is. a. at equilibrium, spontaneous, nonspontaneous b. nonspontaneous, spontaneous, at equilibrium c. spontaneous, at equilibrium, nonspontaneous d. spontaneous, nonspontaneous, at equilibrium e. none of these 18. For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. DeltaSdegree > 0, DeltaHdegree > 0...
The equilibrium constant k_e for the reaction C_6 H_5 COOH (aq) C_6 H_5 COO (aq) + H^+ (aq) is given by. [C_6 H_5 COOH]/[C_6 H_5 COO^-][H^+] [C_6 H_5 COO^-][H^+] [C_6 H_5 COO^-][H^+]/[C_6 H_5 COOH] [C_6 H_5 COO^-][H^+]/C_6 H_5 COOH] The expression of K_p for the reaction 2NaHCO_3 (s) Na_2 CO_3 (s) + CO_2 (g) + H_2 O (g) is. Kc for the reaction 2CO(g) + O_2 (g) 2CO_2 (g) is 2.24 Times 10^22 a t 1273 degree C. K_p for...
Gibbs free energy change AG is defined as AG= AH-TAS. For a spontaneous process, AG<0. For a. reversible reaction at equilibrium, AG = 0. The equilibrium constant K of the reversible reaction is relate- AG"=-RTIn(K). Symbol 40" refers to thermodynamics standard condition: 298 K and 1 atm. Exercise:consider the following reaction: bo:pfoiex 2 HNO:(aq)+NO(g)- 3 NO2(g) + H2O(I) AH=+136.5 kJ; AS = +287.5 J/K a. Below what temperature does the following reaction becomes nonspontaneous? niliod sis anotsole s ob io...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a battery without plugging it in. C. Salt dissolving in water d. Freezing a popsicle at room temperature 2. For the following equilibrium constant values, indicate whether the process is spontaneous or nonspontaneous AND whether the value of ArxnGº is greater than less than or equal to zero by circling the appropriate response. Equilibrium Constant Value Is the reaction...
For the reaction 3C_2R_2(g) = C_6R_6(I), the change in the change in entropy is -301.kJ and the change in entropy is -405. J/K. Calculate the change in free energy at 33.degree C and comment on the reaction spontaneity. Units: kJ. a. 177, nonspontaneous b. 92 kJ, nonspontaneous c. -177, spontaneous d. -190 kJ, spontaneous What is the molar solubility of AgCl in an aqueous solution containing 0.220 M NH_3? Units: M AgCl(s) = Ag^+(aq) + Cl^-(aq) K = 1.60 times...
IF ÄH and ÄS are both negative for a reaction, then the reaction is: a. nonspontaneous at low temperatures and spontaneous at high temperatures. b. spontaneous at low temperatures and nonspontaneous at high temperatures. C. spontaneous at all temperatures. d. nonspontaneous at all temperatures. e. none of the choices given above Suppose that AH° = +95.1 kJ and AS° =-0.192 kJ/K for a chemical reaction. What is AG at 600 K? a. +20.1 kJ b.-20.1 kJ c. +152.3k) d.+210.3 kJ...
36.(a) Choose all of the statements from below which
correctly describe issues pertaining to the
relationship between the emf of a reaction and its Gibbs free
energy change.
The Gibbs free energy change and emf values of a reaction have
opposite algebraic signs (+ vs. -).
A Gibbs free energy change involves moles of substances whereas an
emf involves coulombs of electrons.
Electron stoichiometry must be used to interconvert a Gibbs free
energy change and a reaction emf.
A coulomb...
Question 7 Below what temperature does the following reaction become nonspontaneous? 12(s) + Cl2(g)--2 ICI(s) ΔΗ +36.0 kJ: ΔS +158.8 J/K O 227 K O This reaction is spontaneous at all temperatures. O 313 K O This reaction is nonspontaneous at all temperatures. O 128 K
Need help finding K
When the oxide of generic metal M is heated at 25.0 degree C, only a negligible amount of M is produced. MO_2(s) rightleftharpoons M(s) + O_2(g) Delta CO_2=291.4 kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical equation of this coupled process? Show that the reaction is in equilibrium, include physical states, and represent graphite as C(s). What is the thermodynamic equilbrium constant for...
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