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Thermodynamics, Statistical Thermodynamics, & Kinetics
- Calculate the standard Gibbs free-energy change when SO3 forms from SO2 and O2 at 298 K. Why is sulfur trioxide an important substance to study? (Hint: What happens when it combines with water?)arrow_forwardDetermine the standard Gibbs free energy change, rG, for the reactions of liquid methanol, of CO(g), and ofethyne, C2H2(g), with oxygen gas to form gaseous carbondioxide and (if hydrogen is present) liquid water at298 K. Use your calculations to decide which of thesesubstances are kinetically stable and which are thermodynamically stable: CH3OH(), CO(g), C2H9(g), CO2(g),H2O().arrow_forwardElement X has an enthalpy of fusion of 59.2 kJ mol-1 at its melting point (684°C). Calculate ΔSsys for the process,X(l) → X(s)At 1 bar and 684°C. Express your answer in units of J mol-1 K-1 to 3 significant figures.arrow_forward
- Suppose that 1.4 mol Ar(g) occupies 72 dm3 at 298.15 K and expands to 100 dm3. Calculate ΔG (KJ) for the process.arrow_forwardAn ideal gas (0.487 mol) at 250 K and 1.5 bar is compressed to 5.7 bar.(a) Calculate the change in Gibbs free energy, ΔG (in kJ).arrow_forward1. Assume the molar Gibbs free energy of a gas is given by the equation: Gm - RT In(÷)+ (a + bT)P = 0, where po is the standard pressure and a and b are gas-dependent constants. Derive an equation of state for this gas. Show the final result in the form of PV=?.arrow_forward
- At 25 °C, the equilibrium partial pressures for the reaction 3 A(g) + 2 B(g) = C(g) + 2 D(g) were found to be PA = 4.24 atm, PB = 5.83 atm, Pc = 4.52 atm, and Pp = 4.85 atm. %3| What is the standard change in Gibbs free energy of this reaction at 25 °C? kJ AGXN = molarrow_forwardCalculate the entropy of vaporization for 3 moles of water at 25 °C given that Cp, m (H2O(l)) = 75.29 J/Kmol, ΔHvap Tb = 4.07 × 104 J/mol and Cp, m (H2O(g)) = 33.58 J/K. Give your answer to one decimal point and DO NOT indicate the units.arrow_forwardAt 25 °C, the equilibrium partial pressures for the reaction 2 A(g) + 2 B(g) = C(g) + 3 D(g) were found to be PA = 4.41 bar, PB 5.54 bar, Pc = 4.92 bar, and P, = 5.18 bar. What is the standard change in Gibbs free energy of this reaction at 25 °C? kJ/molarrow_forward
- At 25 'C, the equilibrium partial pressures for the reaction 3 A(g) + 4 B(g) 2 C(g) +2 D(g) were found to be PA 5.43 atm, P 4.22 atm, Pc 5.67 atm, and P = 5.65 atm. %3D %3D What is the standard change in Gibbs free energy of this reaction at 25 'C? kJ AGn = molarrow_forwardAt 25 °C, the equilibrium partial pressures for the reaction 2 A(g) + 4B(g)2C(g) + D(g) were found to be P = 5.98 bar, P = 4.72 bar, Pe= 5.25 bar, and P = 4.16 bar. What is the standard change in Gibbs free energy of this reaction at 25 °C? AGOR= kJ/molarrow_forwardAt 25 °C, the equilibrium partial pressures for the reaction 3 A(g) + 4B(g) 2 C(g) + 3D(g) were found to be PA = 4.71 atm, PB = 4.26 atm, Pc = 5.75 atm, and P = 4.58 atm. What is the standard change in Gibbs free energy of this reaction at 25 °C? AGrxn = kJ molarrow_forward
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