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Chemistry
- If Kc = 82 for the reaction below at 200.0 K, then what is the value of Kp? (R = 0.0821 L·atm/mol·K.) 2 NO, (g) = N,O, (g)arrow_forwardWhen wine is exposed to air, the ethyl alcohol is oxidized to acetic acid: C,H,OH() +O2(g) → CH;CO,H() + H,O(1) AH • AG;° -174.8. • S°. -277.7 -487.0 -285.8 kJ/mol ㅇ -392.5 -237.1 kJ/mol 160.7205.0 160.0 69.9 J/mol•K • three ways: • calculate AG° directly calculate AH° and AS°; calculate from AG° = AH° – TAS Calculate AS universe if > 0 8.arrow_forwardGiven that ΔHvap = 40.66 kJ/mol for water at 100 °C, calculate Kb of H2O.arrow_forward
- The value of AG° at 241.0 °C for the formation of phosphorous trichloride from its constituent elements, P2(g) + 3 Cl2(g) → 2 PC|3 (g) is kJ/mol. At 25.0 °C for this reaction, AH° is –720.5 kJ/mol, AG° is –642.9 kJ/mol, and AS° is – 263.7 J/K. -584.9 6.28 x 104 1.35 x 105 -856.1 -656.9arrow_forwardQuestion 16 of 20 Submit Determine AG° for the phase change CO2(g) → CO2(aq) at 25°C. AH° = -19.4 kJ/mol ΔΗ AS° = +92.3 J/mol·K %3D kJ/mol 1 2 3 C 7 9. +/- x 10 0 LO 00arrow_forwardQuestion 15 of 40 Submit The following reaction is sometimes used as a source of hydrogen for ammonia synthesis. CH4(g) + CO2(g) = 2 CO(g) + 2H2(g) Kp for the reaction is 3.55 x 106 at 1200 K, and AH° for the reaction is 268.5 kJ/mol. Use the van't Hoff equation to find Кр at 1410 K. 1 2 4 C 7 8 9 +/- х 100arrow_forward
- The value of AG° at 241.0 °C for the formation of phosphorous trichloride from its constituent elements, P2(g) + 3 Cl2(g) → 2 PCl3 (g) is kJ/mol. At 25.0 °C for this reaction, AH° is – 720.5 kJ/mol, AG° is –642.9 kJ/mol, and AS° is – 263.7 J/K 6.28 x 104 -656.9 -584.9 -856.1 1.35 x 105arrow_forwardCalculate the vapor pressure of water at equilibrium for the following equation with ΔHorxn = -352 kJ/mole and ΔSorxn = -899 J/(mole⋅K) at 35.0 oC. Calculations involving equilibrium pressures default to atmosphere units (atm). CoCl2(s) + 6H2O(g) ↔ [Co(H2O)6]Cl2(s) Group of answer choices 5.72 torr 760. torr 133 torr 0.00753 torrarrow_forwardThe decomposition of a generic diatomic element in its standard state is represented by the equation X,(g) → X(g) | Assume that the standard molar Gibbs energy of formation of X(g) is 4.78 kJ - mol-' at 2000. K and -47.67 kJ · mol-1 at 3000. K. Determine the value of the thermodynamic equilibrium constant, K, at each temperature. At 2000. K, AGf = 4.78 kJ · mol-. What is K at that temperature? K at 2000. K = At 3000. K, AGF = -47.67 kJ · mol-. What is K at that temperature?arrow_forward
- What would be the final temperature of 231.6mL of NaCI solution upon releasing 24.1kJ of energy to the surroundings? Assume d = 1.02 g/mL; Cs = 4.184 J/g.°C; and the initial temperature is 50.0 °C.arrow_forwardUsing values from Appendix C of your textbook, calculate the value of AH° for each of the following reactions. (a) 2 C₂H4(g) + 2 H₂O(g) 2 C₂H6(g) + O₂(g) AH° 274.0 (b) 2 Cl₂(g) + 2 H₂O(g) = 4 HCl(g) + O₂(g) AH° = kJ AH° = (c) N₂(g) + 3 H₂(g) = 2 NH3(9) kJ AH° = kJ (d) H₂(g) + Br₂(g) = 2 HBr(g) kJarrow_forwardThe vapor pressure of Benzen is 80.1 °C in 1 atm. Calculate its vapor pressure at 20.0 °C (AH for Benzen is 31.0 KJ/mol)arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning