

3. Predict the sign (positive or negative) on the entropy change for each of these reactions....
Cls, graphite)+H2O (g)CO (B)+H2 (g) (a) Calculate AG for the reaction: where temperature is 700 K, AG° 92 kJ and the initial pressure of each gas is P H,0 = 0.67 atm, P co 0.23 atm, P H, = 0.51 atm. (b) What direction would this reaction proceed?
5. (a) Calculate AG for the reaction: Cls, graphite) + H2O(g) + CO(g) + H2 (g) where temperature is 700 K, AG° = 92 kl and the initial pressure of each gas is P HO = 0.67 atm, P co = 0.23 atm, P H = 0.51 atm. (b) What direction would this reaction proceed?
(a) Calculate ∆G for the reaction: C(s, graphite) + H2O (g) ↔ CO (g) + H2 (g) where temperature is 700 K, ∆G⁰ = 92 kJ and the initial pressure of each gas is P H2O = 0.67 atm, P CO = 0.23 atm, P H2 = 0.51 atm. (b) What direction would this reaction proceed?
(a) Calculate AG for the reaction: Ols, graphite) + H2O(g) → CO (6) + H2 (6) where temperature is 700 K, AGⓇ = 92 kJ and the initial pressure of each gas is PHO.0.67 atm, Pco - 0.23 atm, PH, = 0.51 atm. (b) What direction would this reaction proceed?
Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 50, (e) + O2(g) → 250 (6) (b) 2 NH; (6) ► N2 (€) + 3 H2 (8) (c) CO (B) + 2 H2(g) → CH3OH (0)
15. Consider the reaction 2 NO2(g)
N2O4(g) .
(a) Using Gf
N2O4(g) = 97.79 kJ/mol and Gf NO2(g)
= 51.3 kJ/mol, calculate G° at 298 K.
kJ
(b) Calculate G at 298 K if the partial pressures of
NO2 and N2O4 are 0.35 atm and 1.60
atm, respectively.
kJ
16. Consider the reaction given below.
H2(g) + F2(g)
2 HF(g)
(a) Using thermodynamic data from the course website, calculate
G° at 298 K.
kJ
(b) Calculate G at 298 K...
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn = AH) at T = 298 K? O 2 Fe (s) + 1.5 O2() → Fe2O3(s) O N2(1) + 2 O2(1) ► N204(1) O CO(g) + 2H2(g) + CH3OH(1) O C(s, graphite) + H2(g) + O2(g) → C6H1206(s) O Cl2(g) + H2(g) →2 HCl(g) Question 4 1 pts A sample of 1.71 moles of a substance was burned in a constant pressure calorimeter. The...
Calculate the standard change in Gibbs free energy of the
following reactions at Standard Ambient Temperature and Pressure
(SATP where T = 25°C and P = 1 atm) and label them as spontaneous
or nonspontaneous.
(a) 2 SO2(g) + O2(g) 2 SO3(g): ΔΗ.-197.8 k , dS.-188.0 J/K kJ, and the reaction is Selectv (b) 2 C6H6(/) + 15 O2(g) 12 CO2(g) + 6 H2O(/); ΔΗ.-6535.0 kJ, S.-439.2 J/K kJ, and the reaction is Select (c) C(diamond); C(graphite); ΔΗ--19 ki, as...
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...