All Three questions are based on the equation:
ΔG = ΔH - T*ΔS
1. b) +,-,-
Reason :
2. e)-,-,-
Reason :
3. a)-,+,+
1. For the process H2O(g) → H2O(l) at 105°C the signs on AG, AH, and AS...
2) The heat of fusion of ice is 333 J/g. For the process H2O(s) + H2O(1) Determine: a) AH b) AGⓇ at 0°C d) AG at -20°C e) AGⓇ at +20°C c) AS
1. Calculate AG°for the following reaction at 25°C using AG ° = AH ° - TAS° Fe2O3 (s) + 3 H2(g) → 2 Fe (s) + 3 H2O (1) 2. Calculate AG ° for the same reaction using AG°f values Fe2O3 (s) 3 H2(g) → 2 Fe (s) + + 3 H20 (1) + 3. Calculate AGº of the following reaction: 2C (s) H 2 (g) → C2H 2 (g) Use Hess' Law, AG° = AG°1 + AG°2 + AG°3...
D 606 K E) 171 K 7. Predict the signs of AH, AS, and AG for the combustion of hydrogen gas at 25°C. 2 H20() 2 H2)+ O2(9) A) AH <0, AS <0, AG < 0 B) AH> 0, AS < 0, AG> 0 C) AH> 0, AS < 0, AG < 0 D) AH< 0, AS> 0, AG < 0 E) AH < 0, AS> 0, AG < 0
For which process will AH° and AG be expected to be most similar? 2Al(s) + Fe2O3(s) — 2Fe(s) + Al2O3(s) 2 Na(s) + 2 H2O(l) — 2NaOH(aq) + H2(g) OZN021312046 2 NO2(g) → N,04() 2H2(g) + O2(g) → 2 H2018 None
(9) A spontaneous process has the change of free energy (a) AG > 0 (b) AG <0 (c) AG = 0 (d) AH >0 and AS <0 (10) A chemical reaction has AH = 10 kJ, AS = 50 J/K at temperature T = 300 K, the reaction AG = (a) 5000 (b)-5000 (c) 10000 (d) 50 (11) For reaction : Ag (s) + 1/2 Cl2 (g) = Agt (aq) + CI+ (aq), the standard free energy of formation: AGE"...
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...
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...
AG°= AH-TAS AG=AGº+RTinQ where R=8.314 J/mol K 1. Calculate AGº for the following reaction at 25 °C if AH°= -1854 kJ/mol; AS°= -236 J/mol K CH-COCH3(g) + 402(g) → 3C02(g) + 3H2O(1) 2. NH.NO, dissolving in water is a spontaneous process. As it dissolves, the temperature of the solution decreases. Based on this, what must the signs (positive or negative) of AG, AH, and AS be?
298.15K AH HO (1) -285.8 H2O(g) -241.8 4,6° Ch -237.1 -228.6 Sº Go Go 70.0 75.3 188.8 33.6 a) (1 pt) Calculate Acondensation Gº in J) for the condensation of water vapor at 25°C and 1 bar pressure. b) (1 pt) Is this process spontaneous under these conditions? c) (2 pts) Calculate Kp at 25°C. d) (15 pts) Use the Gibbs-Helmholtz equation AG d ) = -AH°(T) T 12 to calculate Acondensation Gº (in J) for the condensation of water...