Question 9 (0.5 marks) Nickel sulfite can be prepared by the following reaction: 2 Ni (s)...
Nickel sulfite can be prepared by the following reaction: 2 Ni (s) + 1/4S8 (s) + 3 02 (g) → 2 NISO: (s) A.Hº = ? Use appropriate data from the following listing to determine A,Hº for this reaction. 1: NISO: (s) → NIO (s) + SO2 (g) AH° = 1000 kJ ll: % S8 (s) + O2(g) → SO2 (g) AH = 250 kJ Ill: Ni (s) + % 02 (g) → NIO (s) AH = 375 kJ
1). From the following enthalpy changes, S (s) + 3/2 O2 (g) → SO3 (9) 2 SO2 (g) + O2(g) → 2 SO3 (9) AH° = -395.2 kJ AH° = -198.2 kJ Calculate the value of AH° for the reaction by using Hess's law of Heat Summation S (s) + O2 (g) → SO2 (g).
Consider the following reaction at equilibrium: NiO(s)+CO(g) 2 Ni(s) + CO2(g). Select all of the following that will shift the reaction to the left side. Addition of CO Removal of CO Addition of Ni Increase the volume. Removal of CO2 Addition of CO2 Removal of NIO Question 1 What is the expression for equilibrium constant for the following reaction? 2 H2S(g) + SO2(g) = 35(s) + 2 H2O(g) Kc= [HQ][S] [SO][H251 Kc= [HO] [502][H,872 Kc= [502] [H2 51 (H20 Kc=...
(10) 5. Use the given reactions and their enthalpies to determine the AHºrxn for the following reaction: 2 S(x) + 3 O2(g) → 2503(g) Hºrxn - ? Given Reactions and their Standard Enthalpies of Reaction: SO2(g) - S(s) + O2(g) 2 SO2(g) + O2(g) 2 S03(g) AHºrxn = +296.8 kJ Hºrxn = -197.8 kJ (10) 6. Use standard enthalpies of formation (AH°f) to determine AHºrxn for the reaction below. 2 CH3OH(1) + 3 02(g) → 2 CO2(g) + 4H2O(g)
uations, calculate AH°rxn for the reaction: (3 marks) LFrom the following thermochemical eq So2(g)+NO2(8) SO3(8)+NO(g) 2 SO28)+02(8)-2SO3(8) 2N0(g) + O2(g. 2 NO2(g) A rxn--197.8 kJ Δ//orxn®-114, 14 kJ -SMB, eus e ,
7 Consider the following reaction at 298 K: NH3(g) +HCI(g)NH4CI(s) Using the thermochemical data at 298 K given below (a) Determine the AH for the reaction. (2 marks) (b) Determine the AG for the reaction and comment on its value. (3 marks) (c) Determine the maximum work done available in the reaction. (3 marks) An equilibrium mixture, consisting of 0.5 atm of NHy(), 0.5 atm of HCKg) and excessive of NH Cl(s), is enclosed in a container at 298 K...
Consider the following equilibrium reaction. P4S3(g) + 8O2(g) = P4010(s) + 3SO2(9) AH = -3677 kJ If heat is removed from an equilibrium mixture of P4S3, P4010, O2, and SO2, then O Keq will decrease. the system will remain at equilibrium with no change in concentrations. the system will shift toward reactants to re-achieve equilibrium. O the system will shift toward products to re-achieve equilibrium. more information is needed to determine the effect on the equilibrium.
Practice Questions Exam 2 Fall 2019 9. The reaction profile represents the following chemical equation: AB-CD Calculate the activation energy (Ea) and AH of the reaction at 200 K Page 2 of 5 14. Consider the following reaction at 1700*C. 2CH ) CH.(g) + 3H2(g) Initially, the reaction mixture contains only [CH] -0.320 M. At equilibrium, the mixture contains [C,H,1 -0.070 M. What is the equilibrium constant for this reaction at 1700 °C? 1200 kJ 500 kJ 200 kJ Ea...
Use Table 6 values to calculate AGº (in kJ) at 2000 K for the following reaction: NO2(g) + CO(g) NO(g) + CO2(g) 0 -222 kJ 0-990 kJ 0 - 199 kJ O-1211 kJ O-420 kJ AG; (kJ/mol ) at 25°c AH; Sº (kJ/mol) (KJ/K mol) AG, (kJ/mol) at 25°c ΔΗ: sº (kJ/mol) (kJ/kmol) 0.0 -20.6 H2S (g) -33.6 +0.2057 -814.0 H2SO4(0) +0.1569 -690.1 0.0 Hg(e) 0.0 +0.0760 -90.8 Hgo (3) -58.6 +0.0703 12 () 0.0 0.0 +0.1161 0.0 K(s) +0.0642...
help with the following combustion reaction. shown are the
tables and answer. I am confused with the steps to get there.
2. (a) For ethanol, CH3CH2OH, AfHº = -277.7 kJ/mol at 25 °C. Using other AfHº values from Appendix A (Table 4.1) of your text, determine the enthalpy (heat) of combustion of liquid ethanol. (b) Determine the temperature change expected when 2.07 g of ethanol are burned in a bomb calorimeter whose heat capacity (as previously measured) is 9007 J/K...