Calculate the ΔS°rxn of the following reaction at 225°C and standard pressure. (Answer in J/mol x K)
C2H4 (g) + 3O2 (g) ---> 2CO2 (g) + 2H2O (g)
| ΔHºf, kJ/mol | Sº, J/mol•K | ΔGºf, kJ/mol | |
|---|---|---|---|
| C2H4(g) | 52.3 | 219.5 | 68.1 |
| O2(g) | 0 | 205.0 | 0 |
| CO2(g) | -393.5 | 213.6 | -394.4 |
| H2O(g) | -241.8 | 188.7 | -228.6 |
Calculate the ΔS°rxn of the following reaction at 225°C and standard pressure. (Answer in J/mol x...
mm 11/18/19 su 82% Calculate the Sºn of the following reaction at 217°C and standard pressure. 3rd attempt Feedback See Periodic CH,(g) +302(8) 2002 (8) +24,0 (8) AH", kJ/mol 52.3 0 S", J/mol K 219.5 AG®, kJ/mol 68.1 205.0 0 C2H4(g) O2(8) CO2(g) H2O(g) -393.5 213.6 -394.4 -241.8 188.7 - 228.6 J/mol K 28 OF 29 QUESTIONS COMPLETED < 1729 > + VIEW SOLUTION
23. Question (1 point) W Calculate the free-energy change of the following reaction at 221°C: C2H(g) +302(g) → 2002(g) + 2H20(g) A Hºt, kJ/mol 52.3 Sº, J/mol K 219.5 C2H4(g) O₂(g) CO2(g) H2O(g) -393.5 205.0 213.6 188.7 -241.8 1st attempt
Calculate the ASn of the following reaction at 217°C and standard pressure. 1st attempt lui See Periodic Table C2H,(8) +302(8) ► 2009 (8) + 2H,0(3) S",J/molek 219.5 AG®, l/mol 68.1 AH", IJ/mol CaHa(g) 52.3 O2(e) 10 CO2(8) -393.5 H2O(s) -241.8 205.0 213.6 -3944 188.7 228.6 J/mol. 14 OF 29 QUESTIONS COMPLETED < 17,29 >
03 Question (1 point) Estimate the Hºrn of the following reaction at 221°C and standard pressure. 1st attempt C,H,(8) +30,(8) ► 2002(g) +24,0(g) CH.(g) Ole) CO2(g) H2O(B) AH", kJ/mol 52.3 0 393.5 241.8 5° /molok 219.5 205. 0 213.6 188.7 AG%, kd/mol 68.1 0 -394,4 228.6 kJ/mol
The combustion of ethene in the presence of excess oxygen yields carbon dioxide and water: ΔS° values: C2H4(g) = 219.4J/K; O2 (g) = 205 J/K; CO2 (g) = 213.6 J/k; H2O (g) =69.91 J/K C2H4 (g) + 3O2 (g) --> 2CO2 (g) + 2H2O (l) This value of ΔS° for this reaction is _____ J/K mol A. -267.4 B. -140.9 C. -347.6 D. +347.6 E. +140.9
Methane can react with water to form carbon dioxide and hydrogen according to the following equation: CH4(g) + 2H2O(g) ↔ CO2(g) + 4H2(g) Use the following thermodynamic data at 298 K to determine the temperature at which the reaction goes from being spontaneous to nonspontaneous. Substance CH4(g) H2O(g) CO2(g) H2(g) ΔHºf (kJ/mol) -74.87 -241.8 -393.5 0 ΔGºf (kJ/mol) -50.81 -228.6 -394.4 0 Sºf (J/Kmol) 186.1 188.8 213.7 130.7
At 298 K, evaluate deltaG(kJ) and deltaE (V) for
2CH3OH(l) + 3O2(g) -> 4H2O(g) + 2CO2(g)
S (J/mol-K) AH°y (kJ/mol) So (J/mol-K) AH(kJ/mol) Substance Substance N2(g) CH-ОН() 126.8 0 191.5 -238.6 CO(g) NH3(g) 197.9 192.5 -110.5 -46.2 CO2(g) NO(g) 213.6 +90.4 210.6 -393.5 NO2(g) +33.8 240.5 H2(g) HNO3(aq) 130.6 146.0 -206.6 H2O( 69.9 -285.8 O2(g) 188.8 H2O(g) 0 205.0 -241.8
For each of the following reactions, calculate ΔH∘rxn, ΔS∘rxn, and ΔG∘rxn at 25 ∘C. State whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 25 ∘C? N2(g)+O2(g)→2NO(g) Express your answer using three significant figures. ΔH∘rxn ΔHrxn∘ = 183 kJ SubmitPrevious Answers Correct Part H Part complete Calculate ΔS∘rxn at 25 ∘C. Express your answer to one decimal place....
Question 3 (6 points) What do you need to calculate to determine if this reaction is favorable at room temperature (25 °C)? Is the reaction product favorable? Substance CH() O2(g) CO2(e) H2O(g) H20(1) 2C2H6 (g) + 702 (g) à 4002 (+ 6H2O(1) Hºp (kJ/mol) Gºt (kJ/mol) S (J/K mol) -84.68 -32.89 229.5 205.0 -393.5 -394.4 213.7 -241.8 -228.6 188.8 -285 84 -237.19 69 94 OAH, no AG", no O o o o o o o AS®, yes Asº.no AG", yes...
Calculate ΔS∘rxn for the following balanced chemical equation: 2H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g) Substance and state S∘[J/(K⋅mol)] H2O(g) 188.8 O2(g) 205 H2S(g) 205.7 SO2(g) 248.1