One of the possible initial steps in the formation of acid rain is the oxidation of the pollutant sulfur dioxide to sulfur trioxide according to the following reaction: SO2 (g) + 12 O2 (g) → SO3 (g) Calculate △G , in kJ, using the information below. Report your answer with 3 sig figs and appropriate units.
|
Substance |
S° ( J / mol · K) |
H° ( kJ / mol) |
|
SO2 |
248.2 |
-296.8 |
|
SO3 |
256.8 |
-395.7 |
|
O2 |
205.2 |
0 |
One of the possible initial steps in the formation of acid rain is the oxidation of...
Sulfur dioxide, SO2(g), can react with oxygen to produce sulfur trioxide, SO3(g), by the reaction 2 50, (g) + O2(g) 250, (g) The standard enthalpies of formation for SO2(g) and SO2(g) are AH (SO2(g)] = –296.8 kJ/mol AH (SO2(g)] = -395.7 kJ/mol Calculate the amount of energy in the form of heat that is produced when a volume of 1.09 L of So, (g) is converted to 1.09 L of So, (g) according to this process at a constant pressure...
Sulfur dioxide, SO2(g), can react with oxygen to produce sulfur trioxide, SO2(g), by the reaction 2 502(g) + O2(g) → 250 (8) The standard enthalpies of formation for SO2(g) and SO2(g) are AH; (SO2(8)) = –296.8 kJ/mol AH (SO2(2)) = –395.7 kJ/mol Calculate the amount of energy in the form of heat that is produced when a volume of 4.46 L of So,(g) is converted to 4.46 L of So, (g) according to this process at a constant pressure and...
Consider the reaction of NO(g) from its elements. 2 502(g) + O2(g) → 2 SO3(9) Use the thermodynamic data given to determine the following for this reaction: AH°, equal O kJ/mol Asº, equals O J/molk Calculate the AG, at 500 °c with all gases at standard pressure and equilibrium constant K at 500 °C. AG, at 500 °c equals O kJ/mol K at 500 equals tance (kJ/mol) (J/mol-K) O2(g) 205.2 SO2(g) -296.8 248.2 SO3(9) -395.7 240.0 AHO so
Calculate ΔS∘rxn for the balanced chemical equation H2S(g)+2O2(g)→H2O(g)+SO3(g) Express the entropy change to four significant figures and include the appropriate units. Standard enthalpies for selected substances at 25∘C Substance S∘(J/(mol⋅K)) O2(g) 205.2 SO2(g) 248.2 SO3(g) 256.8 H2O(g) 188.8 H2S(g) 205.8
5.(a) Define the term Gibbs free energy (2 marks) (b) Give a mathematical expression of the entropy according to (0 statistical thermodynamics and () classical thermodynamics. (4 marks) (c) Based on a statistical thermodynamics argument explain why the entropy of a gas increases when heat is supplied to it. (3 marks) (d) Define the chemical potential uA of a gas Ag) of partial pressure PA present in a mixture of gases. (2 marks) The products of the oxygen (02) is...
Sulfur dioxide, SO, (g), can react with oxygen to produce sulfur trioxide, SO,(g), by the reaction 2 502(g) + O2(g) — 2503(g) The standard enthalpies of formation for SO, (g) and SO2(g) are AH (S02(8)] = -296.8 kJ/mol AH; [s0,() = –395.7 kJ/mol Calculate the amount of energy in the form of heat that is produced when a volume of 4.46 L of So, (g) is converted to 4.46 L of SO2(g) according to this process at a constant pressure...
Sulfur trioxide is made from the oxidation of sulfur dioxide. 2 SO2 + O2 --> 2 SO3. A 16 g sample of SO2, reacted with excess oxygen, gives 18 g SO3. What is the percent yield?
Sulfur dioxide, So, (g), can react with oxygen to produce sulfur trioxide, SO,(g), by the reaction 2 S02(g) + 0, (g) — 2 SO, (g) The standard enthalpies of formation for SO, (g) and So, (g) are AH; SO,(8) = -296.8 kJ/mol AH; SO,(g) = -395.7 kJ/mol Calculate the amount of energy in the form of heat that is produced when a volume of 4.78 L of SO.() is converted to 4.78 L of So, (g) according to this process...
Calculate heat for the following reaction to produce sulfur dioxide, S(3) + O2(g) = SO2(E) given the thermochemical equations below. 2 S(s) + 3 O2(g) =2 SO3(g) AH° = -791.5 kJ 2 SO2(g) + O2(g) = 2 SO3(g) AH° = -197 9 kJ Show all work and calculate to the correct number of sig figs.
Calculate the equilibrium constant from the standard free energy change. Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction 2502(g) + O2(0) 2503(9) AH°F (kJ/mol) AGⓇ, (kJ/mol sº (/mol K) 205.1 Oxygen 02(0) (9) O3(9) 249.2 231.7 161.1 142.7 163.2 238.9 AH°: (kJ/mol Agºr (kJ/mol) 5° (J/mol K) 31.8 0.3 0.3 278.8 3 3.0 167.8 33.0 - 15.0 Sulfur S(s, rhombic) S(s, monodinic) S(g) Sz"(aq) Sg(9) SzCl2(g) SF6(9) H2S(9) soz(9) SO3(0) 1 0....