23. What is AS for the reaction, N2(g) + 3 F2(g) → 2 NF3(g), based on...
2. The reaction N2 (g)+3 F2 (g)2 NF3 (g), has AH° is -248.6 kJ mol and ArS° is -278.7J K mol. Calculate the temperature at which the reaction will be at equilibrium. Assume A,H° and A,S are independent of temperature.
- The reaction N2(g) + 3 F2 (g) → 2 NF3 (9), as A Hºis -248.6 kJ mol- and ArSº is -278.7 JK moll. Calculate the temperature at which the eaction will be at equilibrium. Assume A Hº and A Sº are independent of temperature. - Condensation of a gas to a liquid is an example of a process for which (choose one or more): (a) AH, AS, and AG are negative at all temperatures. (b) AH, AS, and AG...
N2(8) + 3F2(g) → 2 NF3() AH 298 = - 264 kJ mol-'; AS98 = - 278 J K-'mol-' The following questions relate to the synthesis reaction represented by the chemical equation in the box above. a. Calculate the value of the standard free energy change, AG 298. for the reaction. b. Determine the temperature at which the equilibrium constant, Keg, for the reaction is equal to 1.00. (Assume that Hº and AS are independent of temperature.) c. Calculate the...
∆Sₒ is -198.2 J/K for the reaction N2(g) + 3H2(g) --------à 2NH3(g) at 25C®. Given Sₒ(N2)=191.5 J/K-mol, and Sₒ(H2)=130.58 J/K-mol, what is Sₒ(NH3)? ( 4 points)
Nitrogen trifluoride decomposes to form nitrogen and fluorine gases according to the following equation: 2 NF3(g) N2(g) + 3 F2(g) When 2.82 mol of NF3 is placed in a 2.50-L container and allowed to come to equilibrium at 800 K, the mixture is found to contain 0.0297 mol of N2. What is the value of Kp at this temperature? (R = 0.082057 L ⋅ atm/mol ⋅ K) a. 1.83 × 10–3 b. 4.43 × 10–7 c. 1.91 × 10–3 d....
Q1 Q2 Q3 Is a reaction with the following values of AH and AS spontaneous at 350 K?. AH 107 kJ AS = - 285 J/K A. The reaction is not spontaneous. B. The reaction is spontaneous. C. The reaction is at equilibrium. D. Cannot be determined Which of the following reactions represent AG°f? A. Na (s) + 1/2 F2 (g) → NaF (s) B. 2 H2 (g) + O2 (g) + 2 H20 (1) C. H30+ (aq) + OH-...
Calculate S^0 of NH_3(g) for the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) using the following data: Delta G_f^0 of NH_3(g) = - 16 kJ/mol Delta H_f^0 of NH_3(g) = - 45.9 kJ/mol S^0 of H_2(g) = 131 J/mol. K S^0 of N_2(g) = 191.5 J/mol. K
Self-test 4.7 (a) Calculate the standard reaction entropy for N2(g) + 3 H2(g)2 NH3 (g) at 25 °C. (b) What is the change in entropy when 2 mol H2 reacts? Answer: (a) (Using values from Table 4.2)-198.7 J K-1 mol-1; (b) -132.5 J K-1
10. Consider the reaction between NF3(g) and O2(g) which forms N2Os(s) and F(b). The balanced chemical equation is below: (6 marks total) 4 NF3(g) + 5 O2(g) = 2 N2O3(e) + 6 F2(e) A gas mixture was made containing all four gases, where PN,0 = 0.60 bar, Pne - 0.10 bar, Pg 0.10 bar and Po, -0.20 bar. Some other potentially useful information: A/G (NF3(8)= -90.6 kJ/mol and A/G (N2Os(e)) = 117.1 kl/mol a) Use the information above to determine...
1. 2. Consider the reaction 2NO(g) + 2H2(g)—>N2(g) + 2H2O(1) Based upon the stoichiometry of the reaction the sign of ASørxn should be positive Using standard thermodynamic data, calculate AS rxn at 25°C. AS rx = J/Kºmol Using values of AG calculate AGºrx for the following reaction. Is the reaction product favored or reactant-favored? SICI(g) + 2 Mg(s) + 2 MgCl2(s) + Si(s) AG°(kJ/mol) HgS(s) -50.6 SO2(g) -300.13 H2S() -33.56 H20() -228.59 SiCl() -622.76 MgCl2() -591.59 kJ/mol O product-favored reactant-favored