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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&...
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...
a statement of the first law of thermodynamics is that a. in a spontaneous process, the...
a statement of the first law of thermodynamics is that a. in a spontaneous process, the entropy of the universe increases b. there is no disorder in a perfect crystal at 0 k. c. the total energy of the universe is constant. d. the totla energy of the universe is constant. e. mass and energy are conserved in all chemical reactions can only pick one answer i think it is E
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...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
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...
True or false ? 1. An exothermic reaction that results in a decrease of entropy for...
True or false ?
1. An exothermic reaction that results in a decrease of entropy for the system can be negative with respect to AG. 2. Given the following half-reactions, Copper will reduce Tin. Cu2 (aq) +2eCu(s) +0.34 V Sn2 (aq) 2e Sn(s) -0.14 V 3. The equivalence point for the titration of a weak acid with a strong base is at a pH below 7 4. Chromium is being oxidized in the following equation. Cr20, (aq) + I(aq) Cr...
D Question 23 1 pts The Second law of Thermodynamics (Law of Entropy) states: e Perpetual...
D Question 23 1 pts The Second law of Thermodynamics (Law of Entropy) states: e Perpetual motion is just that It takes energy to release energy Energy can neither be created nor destroyed Everything is moving from order to disorder Question 24 Order the following reproduction sequence: (Z)ygote (G)ametes (F)ertilization (M)eiosis (Go)nads o Go, M, G, FZ Go, G. M. F. Z o Z F. Go. M. G OM. Go. G. F. Z
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...
53. The third law of thermodynamics states: A) Any irreversible process results in an increase in...
53. The third law of thermodynamics states: A) Any irreversible process results in an increase in total entropy, whereas any reversible process results in no overall change in entropy. B) The entropy of a pure crystalline substance at absolute zero is zero. C) Energy is conserved. D) If AG = 0, the reaction is at equilibrium. E) None of the answers are correct 54. Which one of the following is always positive when a spontaneous process occurs? A) AS B)...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics,...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics, the change in the entropy of the universe (DS...) during a spontaneous reaction is a ero b negative positive. d less than the change in entropy of the system (DS.). greater than the change in entropy of the system (DS). 8. In an experiment, 1.000 mol of sodium metal is placed in a container and reacted with 4.000 mol of chlorine given the following....
8. The second law of thermodynamics states that A) Delta E=g+w
B) Delta H^ 0 rrn =Sigma nDelta H^ f(products)-Sigma mDelta H^
f(reac reactants) C) for any spontaneous process, the entropy of
the universe increases D) the entropy of a pure crystalline
substance is zero at absolute zero E) Delta S=q rcv /T at constant
temperature
D) zero E) the same as the energy, E 8. The second law of thermodynamics states that A) AE - 9+ w B) AHørxn...
The second law of thermodynamics states that for any spontaneous process the entropy of the universe must increase. Explain how this statement (increasing entropy) relates to: lambda G_rxn lambda H_rxn lambda S_rxn For this process under standard conditions. H_2O_($) 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...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
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...
True or false ?
1. An exothermic reaction that results in a decrease of entropy for the system can be negative with respect to AG. 2. Given the following half-reactions, Copper will reduce Tin. Cu2 (aq) +2eCu(s) +0.34 V Sn2 (aq) 2e Sn(s) -0.14 V 3. The equivalence point for the titration of a weak acid with a strong base is at a pH below 7 4. Chromium is being oxidized in the following equation. Cr20, (aq) + I(aq) Cr...
D Question 23 1 pts The Second law of Thermodynamics (Law of Entropy) states: e Perpetual motion is just that It takes energy to release energy Energy can neither be created nor destroyed Everything is moving from order to disorder Question 24 Order the following reproduction sequence: (Z)ygote (G)ametes (F)ertilization (M)eiosis (Go)nads o Go, M, G, FZ Go, G. M. F. Z o Z F. Go. M. G OM. Go. G. F. Z
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...
53. The third law of thermodynamics states: A) Any irreversible process results in an increase in total entropy, whereas any reversible process results in no overall change in entropy. B) The entropy of a pure crystalline substance at absolute zero is zero. C) Energy is conserved. D) If AG = 0, the reaction is at equilibrium. E) None of the answers are correct 54. Which one of the following is always positive when a spontaneous process occurs? A) AS B)...
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....
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