Which of the following reactions can be used to calculate the DHof of C2H6?
a)2 C (graphite) + 6 H (g) ---> C2H6 (g)
b)2 C (graphite) + 3 H2 (g) ---> C2H6 (g)
c)None of the above reactions can be used.
d)C2 (s) + 3 H2 (g) ---> C2H6 (g)
e)C (graphite) + 3/2 H2 (g) ---> 1/2 C2H6 (g)
Which of the following reactions can be used to calculate the DHof of C2H6? a)2 C...
Which one of the following reactions, when carried out at 25 °C and 101.3 kPa pressure, has an enthalpy change corresponding to the standard molar enthalpy of formation, ∆Hf°, of C2H5OH (l) ? A. C2H5OH (l) → 2 C (g) + 6 H (g) + O (g) B. C2H6 (g) + 1/2 O2 (g) → C2H5OH (l) C. 4 C (s) + 6 H2 (g) + O2 (g) → C2H5OH (l) D. C2H5OH (l) + 3 O2 (g) → 2 CO2...
1a) For which of the following reactions is ΔSo > 0? a. 2 C2H6(g) + 7 O2(g) à 4 CO2(g) + 6 H2O(g) b. H2CO(g) + O2(g) à CO2(g) + H2O(l) c. N2(g) + 3 H2(g) à 2 NH3(g) d. NH3(g) + HI(g) à NH4I(s) 1b) For a particular chemical reaction ΔH = 7.0 kJ and ΔS = –17 J/K. Under what temperature condition is the reaction spontaneous? a) When T > 412 K. b) The reaction is not spontaneous...
Calculate the change in enthalpy (ΔH) for the heat of formation of ethane, C2H6, using Hess' Law and the following reactions:a) 2C(S) + 2O2(g) → 2CO2(g), ΔH = -188 kcalb) C2H6(g) + (7/2)O2(g) → 2CO2(g) + 3H2O(l), ΔH = -373 kcalc) H2(g) + (1/2)O2(g) → H2O(l), ΔH = -68.3 kcal
For each of the following reactions, calculate ΔH∘rxn, ΔS∘rxn, and ΔG∘rxn at 25 ∘C.? 2CH4(g)→C2H6(g)+H2(g) Part B: Calculate ΔS∘rxn at 25 ∘C 2NH3(g)→N2H4(g)+H2(g) Part B: Calculate ΔS∘rxn at 25 ∘C.
For which one of the following reactions is the value of formation of the product? G,0 equal to the Gibbs free energy of 1. (a) H201) +2 O2(g) -H202(1) (b) N2(g) O3(g) -> N203(g) (c) 2 Ca(s) O2(g)2 CaO(s) (d) 6 C(s, graphite+ 6 H(g) -> C6Ho(l) (e) 3 Mg(s) +N2(g) MgaN2(s)
7. Given the equilibrium constants for the following reactions, 2 CH4 (g) = C2H6 (g) + H2 (g) CH4 (g) + H2O (g) = CH3OH (g) + H2 (g) Kc = 9.5 x 10-13 Kc = 2.8 x 10-21 Calculate the equilibrium constant, Kc, for the reaction, 2 CH3OH (g) + H2 (g) = C2H6 (g) + 2 H20 (g)
Please answer both questions. Thank you For which of the following reactions is ASO > 0? a. 2 C2H6(g) +702(g) → 4 CO2(g) + 6 H2O(g) b. H2CO(g) + O2(g) → CO2(g) + H20(1) C. N2(g) + 3 H2(g) → 2 NH3(g) d. NH3(g) + HI(g) → NH41(s) QUESTION 5 For which of the following reactions is AS° at 25 °C closest to zero? a. N2(g) + O2(g) → 2 NO(g) b. H2(g) + 12(s) → 2 HI(g) c. CH3CHO(g)...
6.) Using the data in provided, calculate the standard entropy changes for the following reactions at 25 C: a.) H2(g) + Cu(e) → Cu(s) + H2O(Ⓡ) S (J/K mol): H2(g) = 131 CuO (9) = 43.5 Cu(s) = 33.3 H2O(g) = 188.7 b.) 2Als) + 3ZnO) → Al2O3(s) + 3Zn(s) Als) = 28.3 Zn08) = 43.9 Al2O3(s) - 50.99 Zn(s) = 41.6 7.) Calculate delta G for the following reactions at 25 C. a.)2SO2() + O2(g) → 2803(8) delta G...
Estimate the enthalpy change for the following reaction : H2(g) + C2H4(g) -------> C2H6(g), given the following bond energies: BE(H-H) = 436 kJ/mol; BE(C-H) = 414 kJ/mol; BE(C-C) = 347 kJ/mol; BE(C=C) = 620 kJ/mol. A. -119 kJ B. +119 kJ C. -392 kJ D. +392 kJ E. none of the above
For which of the following reactions does AHF = AHyxmº? a. 6C(s) + 6H(g) → C6H6 (1) b. 2N2 (g) + O2(g) → NO2 (g) c. N2 (g) + 3 H2 (g) → 2NH3 (g) d. H2O (1) + 12 O2 (g) → N2O2(1) e. All of the above f. None of the above