Using the following thermochemical data: 2Y(s) + 6HF(g) → 2YF3(s) + 3H2(g) 2Y(s) + 6HCl(g) 2YC13(s)...
Time Remaining Time Remainine 2 points Using the following thermochemical data: 2Cr(s) + 6HF(g) → 2C1F3(s) + 3H2(g) 2Cr(s) + 6HCl(g) → 2CrCl3(s) + 3H2(g) AH"=691.4 kJ/mol Ayº = -559.2 kJ/mol calculate Air for the following reaction: CrF3(s) + 3HCl(g) → CrCl3(s) + 3HF(g) 0 -1250.6 kJ/mol 264.4 kJ/mol 66.1 kJ/mol 132.2 kJ/mol 0 -625.3 kJ/mol Previous
In order to receive full credit, the meaning of any arithmetic calculation must be shown, otherwise a correct answer with a calculation, without supporting work scores only 30%. Using the information below, calculate ∆Hf°for the following reaction: ErF3(s) + 6HCl (g) → ErCl3 (s) + 3HF (g) 2Er(s) + 6HF(g) → 2ErF3 (s) + 3H2 (g) ∆Hf°= -1795.4 kj/mol 2Er(s) + 6HCl(g) → 2ErCl2 (s) + 3H2 (g) ∆Hf°= -1443.6 kj/mol
7. Use the following thermochemical data to identify which statement is true pertaining to the reaction Fe,O,(s) + 3H2(g) à 2Fe(s) + 3H,O(g) AH(Feq (ə)) = -822 kJ mol AH(H0(9) --242 kJ mol 56.96 -0.090 kJ moi"! K S.= 0.131 kJ mollk! SPO = 0.027 kJ mol'k 54,00) -0.189 kJ mol-'k A The reaction is thermodynamically favourable at 20°C. B The standard enthalpy of the reaction is -96 kJ molt C The Gibbs energy change for the reaction at 500...
5. Given the data below, what is AHⓇ for the following reaction? CH4(g) + 3Cl2(g) → CHCl3(g) + 3HCl(g) AHOICH4(9)] = -75 kJ/mol AHOICHCl3(9)] = -103 kJ/mol AH HCl(9)] = -92 kJ/mol A-304 kJ B-120 kJ C +322 kJ D +120 kJ E none of these
Calculate the heart of formation for aluminum chloride using the following thermochemical equations: 2Al (s) + 6HCl (aq) ---> 2AlCl3 (aq) + 3H2 (g) . ΔH = -1049 kJ HCl (g) ---> HCl (aq) . ΔH = -74.8 kJ H2 (g) + Cl2 (g) ---> 2HCl (g) ΔH = -1845 kJ AlCl3 (s) ---> AlCl3 (aq) ΔH = -323 kJ
10. Given the following thermochemical data: 2 P(s) + 3 Cl, (g) → 2 PCI, (1) AH = -636 kJ/mol PCI, (1) PCI, (s) + C12 (8) AH = 138 kJ/mol compute the enthalpy of formation of PCI, (s), that is the enthalpy change for the reaction P(8) + 5/2 CI, (g) - PCI, (5) AH-? kJ/mol
The following thermochemical equation is for the reaction of ammonium nitrate(s) to form dinitrogen monoxide(g) and water(g) NH,NO3() N2O(g) + 2H2O(g) AH = -35.9 kJ How many grams of NH NO,(s) would have to react to produce 12.1 kJ of energy? grams The following thermochemical equation is for the reaction of hydrogen sulfide(g) with oxygen(g) to form water(g) and sulfur dioxide(g). 2H2S(g) + 302(g)—2H2O(g) + 2802(8) AH=-1.04x109 kJ When 9.64 grams of hydrogen sulfide(g) react with excess oxygen(g), -588.8 kJ...
Review Problem 6.086 Given the following thermochemical equations, 2Cu + S(s) - Cu2S(s) AH° = -79.5 kJ S(s) + O2(g) → SO2(9) AH = -297 kJ Cu2S(s) + 202(g) → 2CụO(s) + SO2(g) AH° = -527.5 kJ calculate the standard enthalpy of formation (in kilojoules per mole) of Cuo(s). AH°(Cuo(s)) - kJ/mol The number of significant digits is set to 3; the tolerance is +/-2% Show Work is REQUIRED for this question: Open Show Work Review Problem 6.087 Given the...
11. For the reaction Fe2O3(s) + 3H2(g) +2Fe(s) + 3H2O(g) AH° = 98.8 kJ and AS° = 142.5 J/K The equilibrium constant for this reaction at 345.0 K is Assume that AHⓇ and AS are independent of temperature. For the reaction 2502(g) + O2(g) +2503(g) AH° = -197.8 kJ and AS° = -187.9 J/K The equilibrium constant for this reaction at 272.0 K is Assume that AH° and AS are independent of temperature.
solution pls 13. Find the Hºrn for the reaction 2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g). AH°F (NH3) = -46 kJ/mol, AH°F (HCI) = -92.3 kJ/mol Answer: -461.8 kJ 14. Use the standard enthalpies of formation to calculate AH°rxn: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) AH°F (Fe2O3) = -826 kJ/mol, AH°F (CO) = -110.5 kJ/mol, AH°F (CO2) = -393.5 kJ/mol Answer: -23 kJ 15. Given the following reaction: B2H6(g) + 6H2O(l) → 2H3BO3(g) + 6H2(g) AH°= -493.4 kJ AH°t...