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1).From the following enthalpy changes, S (s) +3/2 O2 (g) 2 SO2 (g) SO3 (g) O2...
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).
2) Oxyacetylene torches are fueled by the combustion of acetylene, C2H2 2 C2H2 + 5 O2 (g) 4 CO2 (g) + 2 H2O (g) If the enthalpy change for the reaction is -251 1.14 kJ/mol, a) How much heat can be produced by the reaction of 10 g of C2H2? b) Is it an endotherm ic or exothermic reaction? Molar mass of acetylene is 26.04 g/mol.
Given the following data: S(s) + 02(8) -> SO3(g) AH = -395.2 kJ 2SO2(g) + O2(g) + 2503(g) AH = - 198.2 kJ Calculate AH for the reaction: S(s) + O2(g) SO2(g) +296.1 kJ -494.3 kJ -296.1 kJ 0 -197.0 kJ -593.4 kJ
IS LOCAS Question 16 5 pts Given the following data: S(s) + O2(g) → SO3(8) AH=-395.2 kJ 2502(g) + O2(g) - 2503(g) AH = - 198.2 kJ Calculate AH for the reaction: S(s) + O2(g) +SO2(g) -197.0 kJ 0 -593.4 kJ -296.1 kJ -494.3 kJ +296.1 kJ 5 pts Question 17
Given the following reactions: 2 S (s) + 3 O2 (g) ⟶ 2 SO3 (g) ΔH1= LaTeX: -− 790 kJ S (s) + O2 (g) ⟶ SO2 (g) ΔH2= LaTeX: -−297 kJ What is the enthalpy change of the following reaction? 2 SO3 (g) ⟶ 2 SO2 (g) + O2 (g) ΔH3=?
ead eacn questiuon careruny ana cnoose tne core nswer Question 3 2 pts Determine the amount of heat (in kJ) released as 21.5 g of NO reacts with an excess of O2 according to the reaction: 2NO(g) + O2(3) 2NO23) AH- 114.6 kJ O 1230 kJ of heat released Question 4 2 pts Acetylene gas, C2H2, is used in welding torches. What is the enthalpy of combustion of acetylene? 2 C2H2(g)+ 5 02g) 4 CO2(3) + 2 H2O(g) ead eacn...
5) For the reaction 2 SO2(g) + O2(g) → 2 SO3(g), if initially P(SO2) = 1.2 atm, P(O2) = 1.8 atm, and P(SO3) = 2.1 atm, calculate AG for this reaction at 25°C. The following data is valid at 25°C: AG° (kJ/mol) SO 300.4 SO3 370.4 A) -140.0 kJ/mol B)-141.3 kJ/mol C)-138.7 kJ/mol D) 1,174.7 kJ/mol E) -137.6 kJ/mol
3. Consider the following reaction: 2 SO2 (g) + O2 (g) → 2 SO3 (g) AH.x = -197.6 kJ a. If 285.3 g of SO2 is allowed to react with 158.9 g of O2, what is the limiting reactant and theoretical yield of SO3 in liters if the reaction is performed at 315 K and 50.0 mmHg? How much of each reactant remains at the end of the reaction? [10] LR: SO TY: SO2 remaining: O2 remaining: Imol soa 64.000log...
Using Hess's Law, determine the enthalpy change of the following reaction. CS2(1) + 3 O2(g) --> CO2(g) + 2 SO2(g) C(s) + O2(g) --> CO2(g) AH = -393.5 kJ/mol S(s) + O2(g) --> SO2(g) AH = -296.8 kJ/mol C(s) + 25(s) --> CS2(8) AH = +87.9 kJ/mol -899.2 kJ O-778.2 kJ -602.4 kJ - 1075.0 kJ
Calculate ΔHf°(SO3) from the following information. S(s) + O2(g) → SO2(g) ΔHrxn° = -296.8 kJ SO2(g) + 1/2 O2(g) → SO3(g) ΔHrxn° = -98.9 kJ