Is the following process spontaneous?
Homework Answers
we know,
delta G = delta H - T * delta S
for spontaneous process, delta G < 0
delta H - T * delta S < 0
for this process delta S = (+)ve as the distance of two sphere increases.
delta H = (+)ve because energy is required for increasing diastance among spheres.
but with temperature we can not tell wheather it is spontaneous or not.
so last option is the answer.
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Is the following process spontaneous?
Is the following process spontaneous? O Yes, because AH> 0. No,...
If, for a particular process, AH = 54 and AS = 312k, the process will be:...
If, for a particular process, AH = 54 and AS = 312k, the process will be: Select the correct answer below: O spontaneous at any temperature O nonspontaneous at any temperature O spontaneous above a certain temperature O spontaneous below a certain temperature
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS <0, AG <0 (D) AH<0, AS > 0, AG>O (B) AH > 0, AS > 0, AG <0 (E) AH>0, AS <0, AG>0 (C) AH<0, AS <0, AG<0 5. For the reaction H, (g) +S (8) HS (g), AF- -20.2 kJ/mol and AS = +43.1 J/K mol. Which of these statements is true? (A) The reaction is only spontaneous at low temperatures. (B) The...
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...
3 attempts left Check my work Be sure to answer all parts. From the values of...
3 attempts left Check my work Be sure to answer all parts. From the values of AH and AS, predict which of the following reactions would be spontaneous at 24°C: reaction A: AH = 10.5 kJ/mol, AS = 30.0 J/K mol: spontaneous nonspontaneous impossible to tell mol, reaction B: AH=1.8 kJ/mol, AS = -113 J/ K O spontaneous nonspontaneous impossible to tell If either of the reactions is nonspontaneous, can it(they) become spontaneous? yes, reaction A can become spontaneous yes,...
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of...
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of water at 1 atm). H2O (liquid, -15 °C) → H2O (solid, -15 °C) It is known that the heat of fusion of water at 0 °C is 1436 cal/mol; the heat capacity of liquid water is 18.0 cal/mol, the heat of capacity of ice is 8.7 cal/mol. H2O (liquid, -10 °C) → H2O (liquid, 0 °C). HO (liquid, -15°C) H.O(solid, -15°C) Process (1) Process...
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of water at 1 atm)....
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of water at 1 atm). H2O (liquid, -15 °C) → H2O (solid, -15 °C) It is known that the heat of fusion of water at 0 °C is 1436 cal/mol; the heat capacity of liquid water is 18.0 cal/mol, the heat of capacity of ice is 8.7 cal/mol. H2O (liquid, -10 °C) → H2O (liquid, 0 °C). HOC -130 HO -15 To calculate AS, AH...
A process at constant T and P can be described as spontaneous if AG <0 and...
A process at constant T and P can be described as spontaneous if AG <0 and nonspontaneous if AG> 0. Over what range of temperatures is the following process spontaneous? Assume that gases are at a pressure of 1 atm. (Hint: Use the data below to calculate AH and AS [assumed independent of temperature and equal to AH° and AS°, respectively] and then use the definition of AG.) 2 MnO2(s) 02(g) 2 MnO(s) AH (kJ mol) -520.0 -385.2 s° (J...
In a given process A->B, it is found that AG < 0 and AH>0. Which of...
In a given process A->B, it is found that AG < 0 and AH>0. Which of the following statements are true The process is spontaneous in the forward directon The process is exothermic As for the process must be less than zero As for the process could be either less than zero or greater than zero
4. A reaction that is not spontaneous at all temperature if AH is and AS is A)+,+ B) -, C) +, D)-, E)+, 0
4. A reaction that is not spontaneous at all temperature if AH is and AS is A)+,+ B) -, C) +, D)-, E)+, 0
TCO2E05 A particular reaction has AH = +27 kJ/mol and AGʻ = -42 kJ/mol. Which of the following best describes th...
TCO2E05 A particular reaction has AH = +27 kJ/mol and AGʻ = -42 kJ/mol. Which of the following best describes this reaction? Select one: O a. The reaction is endothermic and spontaneous. b. The reaction is endothermic and not spontaneous. c. The reaction is endothermic and could be spontaneous or not spontaneous depending on the sign of AS° O d. The reaction is exothermic and could be spontaneous or not spontaneous depending on the sign of AS° e. The reaction...
If, for a particular process, AH = 54 and AS = 312k, the process will be: Select the correct answer below: O spontaneous at any temperature O nonspontaneous at any temperature O spontaneous above a certain temperature O spontaneous below a certain temperature
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS <0, AG <0 (D) AH<0, AS > 0, AG>O (B) AH > 0, AS > 0, AG <0 (E) AH>0, AS <0, AG>0 (C) AH<0, AS <0, AG<0 5. For the reaction H, (g) +S (8) HS (g), AF- -20.2 kJ/mol and AS = +43.1 J/K mol. Which of these statements is true? (A) The reaction is only spontaneous at low temperatures. (B) The...
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...
3 attempts left Check my work Be sure to answer all parts. From the values of AH and AS, predict which of the following reactions would be spontaneous at 24°C: reaction A: AH = 10.5 kJ/mol, AS = 30.0 J/K mol: spontaneous nonspontaneous impossible to tell mol, reaction B: AH=1.8 kJ/mol, AS = -113 J/ K O spontaneous nonspontaneous impossible to tell If either of the reactions is nonspontaneous, can it(they) become spontaneous? yes, reaction A can become spontaneous yes,...
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of water at 1 atm). H2O (liquid, -15 °C) → H2O (solid, -15 °C) It is known that the heat of fusion of water at 0 °C is 1436 cal/mol; the heat capacity of liquid water is 18.0 cal/mol, the heat of capacity of ice is 8.7 cal/mol. H2O (liquid, -10 °C) → H2O (liquid, 0 °C). HO (liquid, -15°C) H.O(solid, -15°C) Process (1) Process...
1. Calculate AS, AH and AG for the following spontaneous (irreversible) process (with 3.0 mol of water at 1 atm). H2O (liquid, -15 °C) → H2O (solid, -15 °C) It is known that the heat of fusion of water at 0 °C is 1436 cal/mol; the heat capacity of liquid water is 18.0 cal/mol, the heat of capacity of ice is 8.7 cal/mol. H2O (liquid, -10 °C) → H2O (liquid, 0 °C). HOC -130 HO -15 To calculate AS, AH...
A process at constant T and P can be described as spontaneous if AG <0 and nonspontaneous if AG> 0. Over what range of temperatures is the following process spontaneous? Assume that gases are at a pressure of 1 atm. (Hint: Use the data below to calculate AH and AS [assumed independent of temperature and equal to AH° and AS°, respectively] and then use the definition of AG.) 2 MnO2(s) 02(g) 2 MnO(s) AH (kJ mol) -520.0 -385.2 s° (J...
In a given process A->B, it is found that AG < 0 and AH>0. Which of the following statements are true The process is spontaneous in the forward directon The process is exothermic As for the process must be less than zero As for the process could be either less than zero or greater than zero
4. A reaction that is not spontaneous at all temperature if AH is and AS is A)+,+ B) -, C) +, D)-, E)+, 0
TCO2E05 A particular reaction has AH = +27 kJ/mol and AGʻ = -42 kJ/mol. Which of the following best describes this reaction? Select one: O a. The reaction is endothermic and spontaneous. b. The reaction is endothermic and not spontaneous. c. The reaction is endothermic and could be spontaneous or not spontaneous depending on the sign of AS° O d. The reaction is exothermic and could be spontaneous or not spontaneous depending on the sign of AS° e. The reaction...
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