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53. The third law of thermodynamics states: A) Any irreversible process results in an increase in...
55. Which one of the following is not a valid expression for the rate of the...
55. Which one of the following is not a valid expression for the rate of the reaction below? Page 11 4NH ( + 7026 4NO. + 6H.00 A) - ALO 7 Δι B) | AINO.1 4 ΔΙ C) I ALHO 6 Δι D). 1 4 ΔΙΝΗ] At E) All of the above are valid expressions for the rate of reaction. 56. In which of the following aqueous solutions would you expect AgBr to have the least molar solubility? AgBroAg +...
The second law of thermodynamics states that for any spontaneous process the entropy of the universe...
The second law of thermodynamics states that for any spontaneous process the entropy of the universe must increase. Explain how this statement (increasing entropy) relates to: lambda G_rxn lambda H_rxn lambda S_rxn For this process under standard conditions. H_2O_($) O longleftrightdoublearrow H_2O(f), circle the correct sign you predict for (a), (b), and (c) and explain your reasoning lambda G_rxn + or - lambda H_rxn + or- lambda H_rxn + or-(d) Explain how temperature affects the sign of lambda G in...
5. The total entropy of a system and its surroundings always increases for a spontaneous process is a statement bt a) the third law of thermodynamics. b) the second law of thermodynamics c) the l...
5. The total entropy of a system and its surroundings always increases for a spontaneous process is a statement bt a) the third law of thermodynamics. b) the second law of thermodynamics c) the law of constant composition d) the law of conservation of matter e) the first law of thermodynamics 6. Which of the following is a redox reaction? 7. A certain electrochemical cell has for its cell reaction Zn Hgo occurring at the anode? Zno Hg Which is...
8. The second law of thermodynamics states that A) Delta E=g+w B) Delta H^ 0 rrn =Sigma nDelta H^ f(products)-Sigma mDe...
8. The second law of thermodynamics states that A) Delta E=g+w
B) Delta H^ 0 rrn =Sigma nDelta H^ f(products)-Sigma mDelta H^
f(reac reactants) C) for any spontaneous process, the entropy of
the universe increases D) the entropy of a pure crystalline
substance is zero at absolute zero E) Delta S=q rcv /T at constant
temperature
D) zero E) the same as the energy, E 8. The second law of thermodynamics states that A) AE - 9+ w B) AHørxn...
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In...
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In a spontaneous process, which of the following always increases? a. the entropy of the system b. the entropy of the surroundings c. the entropy of the universe d. the entropy of the system and the universe c. the entropy of the system, surroundings and the universe (Hand S refer to the system), a. AH>0 8. Processes are always spontaneous, regardless of temperature, when and...
All four please thank you Which of the following is necessary for a process to be...
All four please thank you
Which of the following is necessary for a process to be spontaneous? A) Delta H_sys < 0 B) Delta S_sys > 0 C) Delta S < 0 D) Delta S_univ > 0 E) Delta G_sys = 0 Which reaction has the largest Delta S degree? A) 2 N_2H_4(g) rightarrow 2 NH_3(g) + H_2(g) B) O_2(g) + 2 H_2(g) rightarrow 2 H_2O(l) C) O_2(g) + 2 H_2(g) rightarrow 2H_2O(g) D) N_2(g) + 3H_2(g) rightarrow 2NH_3(g) E)...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
1. True or False: a) A reaction is spontaneous if ΔSnn > 0. b) The Fourth Law of Thermodynamics states: The entropy of a pure, perfect crystal at O K is. c) For A(g) + B(g) D(g) + E(g), if ΔΗ&...
1. True or False: a) A reaction is spontaneous if ΔSnn > 0. b) The Fourth Law of Thermodynamics states: The entropy of a pure, perfect crystal at O K is. c) For A(g) + B(g) D(g) + E(g), if ΔΗ'm < 0 and Δ5%n > 0, the reaction is spontaneous regardless of temperature. d) For A(g) + B(g) → D(g) + E(g), ifAH"m > 0 and Δ5%n < 0, it will be possible to find a temperature above which...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics,...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics, the change in the entropy of the universe (DS...) during a spontaneous reaction is a ero b negative positive. d less than the change in entropy of the system (DS.). greater than the change in entropy of the system (DS). 8. In an experiment, 1.000 mol of sodium metal is placed in a container and reacted with 4.000 mol of chlorine given the following....
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For t...
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For the reaction: N:Oa (g) eo 2NO: (g) (a) Use the information in the Table to calculate AG for the reaction (b) Use the information in the Table to calculate AH" for the reaction (c) Calculate K, at 25 C. (d) Calculate K, at 1600 °C. (Assume AH to be temperature independent) (e) Calculate the degree of dissociation, a, of...
55. Which one of the following is not a valid expression for the rate of the reaction below? Page 11 4NH ( + 7026 4NO. + 6H.00 A) - ALO 7 Δι B) | AINO.1 4 ΔΙ C) I ALHO 6 Δι D). 1 4 ΔΙΝΗ] At E) All of the above are valid expressions for the rate of reaction. 56. In which of the following aqueous solutions would you expect AgBr to have the least molar solubility? AgBroAg +...
The second law of thermodynamics states that for any spontaneous process the entropy of the universe must increase. Explain how this statement (increasing entropy) relates to: lambda G_rxn lambda H_rxn lambda S_rxn For this process under standard conditions. H_2O_($) O longleftrightdoublearrow H_2O(f), circle the correct sign you predict for (a), (b), and (c) and explain your reasoning lambda G_rxn + or - lambda H_rxn + or- lambda H_rxn + or-(d) Explain how temperature affects the sign of lambda G in...
5. The total entropy of a system and its surroundings always increases for a spontaneous process is a statement bt a) the third law of thermodynamics. b) the second law of thermodynamics c) the law of constant composition d) the law of conservation of matter e) the first law of thermodynamics 6. Which of the following is a redox reaction? 7. A certain electrochemical cell has for its cell reaction Zn Hgo occurring at the anode? Zno Hg Which is...
8. The second law of thermodynamics states that A) Delta E=g+w
B) Delta H^ 0 rrn =Sigma nDelta H^ f(products)-Sigma mDelta H^
f(reac reactants) C) for any spontaneous process, the entropy of
the universe increases D) the entropy of a pure crystalline
substance is zero at absolute zero E) Delta S=q rcv /T at constant
temperature
D) zero E) the same as the energy, E 8. The second law of thermodynamics states that A) AE - 9+ w B) AHørxn...
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In a spontaneous process, which of the following always increases? a. the entropy of the system b. the entropy of the surroundings c. the entropy of the universe d. the entropy of the system and the universe c. the entropy of the system, surroundings and the universe (Hand S refer to the system), a. AH>0 8. Processes are always spontaneous, regardless of temperature, when and...
All four please thank you
Which of the following is necessary for a process to be spontaneous? A) Delta H_sys < 0 B) Delta S_sys > 0 C) Delta S < 0 D) Delta S_univ > 0 E) Delta G_sys = 0 Which reaction has the largest Delta S degree? A) 2 N_2H_4(g) rightarrow 2 NH_3(g) + H_2(g) B) O_2(g) + 2 H_2(g) rightarrow 2 H_2O(l) C) O_2(g) + 2 H_2(g) rightarrow 2H_2O(g) D) N_2(g) + 3H_2(g) rightarrow 2NH_3(g) E)...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
1. True or False: a) A reaction is spontaneous if ΔSnn > 0. b) The Fourth Law of Thermodynamics states: The entropy of a pure, perfect crystal at O K is. c) For A(g) + B(g) D(g) + E(g), if ΔΗ'm < 0 and Δ5%n > 0, the reaction is spontaneous regardless of temperature. d) For A(g) + B(g) → D(g) + E(g), ifAH"m > 0 and Δ5%n < 0, it will be possible to find a temperature above which...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics, the change in the entropy of the universe (DS...) during a spontaneous reaction is a ero b negative positive. d less than the change in entropy of the system (DS.). greater than the change in entropy of the system (DS). 8. In an experiment, 1.000 mol of sodium metal is placed in a container and reacted with 4.000 mol of chlorine given the following....
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For the reaction: N:Oa (g) eo 2NO: (g) (a) Use the information in the Table to calculate AG for the reaction (b) Use the information in the Table to calculate AH" for the reaction (c) Calculate K, at 25 C. (d) Calculate K, at 1600 °C. (Assume AH to be temperature independent) (e) Calculate the degree of dissociation, a, of...
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