1. For the reaction at 298 K,
P4O10s + 6H2O l → 4H3PO4s
the values of ΔHo and ΔSo are -416 kJ and -209 J/K, respectively. What is the value of ΔGo at 298 K? Use correct units.
ΔGo=
2. Will the following reactions show an increase or decrease for
the value of ΔSrxn?
NaCl s → Na+aq +
Cl-aq
H2O l → H2O g
2H2g + C s →
CH4g
2CH3OH g + 3O2g →
2CO2g + 4H2O g
1. For the reaction at 298 K, P4O10s + 6H2O l → 4H3PO4s the values of...
QUESTION 7 A particular reaction has a ΔHo value of -152 kJ and ΔGo of -161 kJ at 484 K. Calculate ΔSo at 484 K in J/K. 1 points QUESTION 8 A particular reaction has a ΔHo value of -125 kJ and ΔSo of -230 J/mol K at 298 K. Assuming that ΔHo and ΔSohardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes. 1 points QUESTION 9 Given the following...
For the reaction at 298 K, 2NO2 g → N2O4 g the values of ΔHo and ΔSo are -58.0 kJ and -177 J/K, respectively. What is the value of ΔG nonstandard at 298 K when the concentration of N2O4 is 1.69 M and the concentration of NO2 is 2.75 M? Remember to answer in correct units. ΔG=
At 298 K, evaluate deltaG(kJ) and deltaE (V) for 2CH3OH(l) + 3O2(g) -> 4H2O(g) + 2CO2(g) S (J/mol-K) AH°y (kJ/mol) So (J/mol-K) AH(kJ/mol) Substance Substance N2(g) CH-ОН() 126.8 0 191.5 -238.6 CO(g) NH3(g) 197.9 192.5 -110.5 -46.2 CO2(g) NO(g) 213.6 +90.4 210.6 -393.5 NO2(g) +33.8 240.5 H2(g) HNO3(aq) 130.6 146.0 -206.6 H2O( 69.9 -285.8 O2(g) 188.8 H2O(g) 0 205.0 -241.8
NaCl(s) ⇌ Na+(aq) + Cl-(aq) ΔHo = 3.9 kJ/mol At 298 K, a saturated solution of NaCl has [Na+] = 7.0 M and [Cl-] = 5.4 M. If the temperature of the mixture is increased to 323 K, what will be the equilibrium concentration (M) of Na+? (Assume no ion pairing.) Enter your answer to 2 decimal places. NaCl(s) Na (aq) + CI'(aq) AH- 3.9 kJ/mol At 298 K, a saturated solution of NaCI has [Na"] 7.0M and [CI] -...
Estimate the free energy change (ΔGrxn) for the following reaction at 298 K, if each gaseous substance is present at p = 0.50 atm. 2CH3OH(l) + 3O2(g) ⇌ 2CO2(g) + 4H2O(g) Enter your answer in kJ.
Given the values of So given below in J/mol K and the values of ΔHfo given in kJ/mol, calculate the value of ΔGo in kJ for the combustion of 1 mole of propane to form carbon dioxide and gaseous water at 298 K. S (C3H8(g)) = 274 S (O2(g)) = 209 S (CO2(g)) = 216 S (H2O(g)) = 181 ΔHfo (C3H8(g)) = -105 ΔHfo (CO2(g)) = -394 ΔHfo (H2O(g)) = -225
. Given the following reaction at 25o C. 4NH3(g) + 5 O2(g) 4NO(g) + 6H2O(l) ΔHo = -1168 kJ ΔHo f(NH3) = -46.2 kJ/mol; ΔHo f(H2O) = -285.8 kJ/mol. What is the standard enthalpy of formation of NO gas at 25o C?
1)A voltaic cell operates at 298 K according to the following reaction: 4 Fe2+(aq) + O2 (g) + 4 H+(aq) → 4 Fe3+ (aq) + 2 H2O (l) What is the emf of this cell when [Fe2+] = 6.5908E-4 M, [Fe3+] = 0.699 M, pressure O2 = 0.540 atm and pH = 3.10? 2)A voltaic cell operates at 298 K according to the following reaction: 3 Fe2+(aq) → Fe (s) + 2 Fe3+ (aq) What is the emf of this...
Calculate ΔG°rxn,298 and ΔGrxn,298 for the following. a) Ag+(aq) + Cl-(aq) -> AgCl (s) b) Ag+(aq) + I-(aq) -> AgI (s) c) Ag+(aq) + NO3-(aq) -> AgNO3 (aq) d) Ag+(aq) + SO4 2-(aq) -> Ag2SO4(aq) e) Ba 2+(aq) + 2Cl- (aq) + 2H2O (l) -> BaCl2 • 2H2O f) Ba 2+(aq) + 2NO3-(aq) -> Ba(NO3)2 (aq) ΔGo, 298 values for 1M solutions NO3 -108.74 -33.41 SO42 -744.53 -618.41 Cl -109.789 -1296.32 W2 -384.138 Anions (kJ/mol) Cations (kJ/mol) -51.57 -66.19 Ag...
A) Suppose an equilibrium mixture consists of 0.68 atm N2O4 and 2.1 atm NO2, and the volume of the container is halved at constant temperature. Calculate the new equilibrium pressure (atm) of NO2. B) NaCl(s) ⇌ Na+(aq) + Cl-(aq) ΔHo = 3.9 kJ/mol At 298 K, a saturated solution of NaCl has [Na+] = 7.0 M and [Cl-] = 5.4 M. If the temperature of the mixture is increased to 321 K, what will be the equilibrium concentration (M) of...