Q 6/ A- Given that the density and atomic weight of iron are 7.65 g/cm and 55.859 g/mol respectively ,and that the activation energy for vacancy formation 1.08 ev/atom, NA ( 6.023X10), k ( 8.62X10*) ev/atom.K .Determine the concentration of vacancies at 850 °C?
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- Thermodynamic parameters (here the activation energy, enthalpy and entropy) for the release of a certain drug from a tablet formulation were measured and found to be: AH = -23.6 kJ mol-¹ and AS = 59.9 J K¹ mol¹¹. Which ONE of the following is the value of AG for the release of the drug at 37.0 °C? -42.2 kJ/mol -5.0 kJ/mol -18.6 kJ/mol -25.8 kJ/mol -2.2 kJ/molCO(g) +2 H2 (9) 2 CH3OH(g) K = 2.2 x 104 at 298 k %3D A stoichiometric mixture of CO(9) and H2 (g) was allowed to react in two different 2.0 L rigid containers at a constant temperature of 298 K. The reaction is represented by the equation above. Diagram 1 represents the uncatalyzed reaction and diagram 2 represents the catalyzed reaction one hour after the reactants were mixed. Which of the following correctly explains the experimental results represented in the particle diagrams? S Although the reaction is thermodynamically favorable because AG° 0 based on the value of K, but the addition of a catalyst improved the orientation of the reactants during collisions, allowing the catalyzed reaction to proceed in one hour. The reaction is not thermodynamically favorable because AG° > 0 based on the value of K, but the catalyzed reaction could proceed in one hour because it has a lower AH and a higher AS.How long will it take for the concentration of A to decrease from 0.850 M to 0.205 for the reaction A → Products? (k = 0.0882 M⁻¹s⁻¹)
- 2. In an analysis of interhalogen reactivity, 0.1 M of ICI was placed into a flask where it decomposed at high temperature in the following reaction: 21Cl(g) 12(g) + Cl2(g) Calculate the equilibrium concentrations of I2, Cl2, and IC1 if K, = 0.11 at this T.Please help me answer the questions with the red boxes. The order in respect to CO2 and differential rate law Equation used: C [crystal graphite] + CO2 [gas ] ⇌ 2CO [gas ] ; Formation of carbon monoxideThe viscosity of water at 25oC is 2.890´10-2 Kg/m/s. Calculate the value of activation energy (Ea) for molecular motion in the solution. (ho= 1.547´10-2 Kg/m/s; R=8.314 J/K/mol)
- Calculate the partial pressures of the components of the reactionI2(S)+Br2(g)↔2IBr(g) given the equilibrium constant K = 0.25, pressure = 0.25 atm and temperature of 25 degC. Assume bromine is in liquid form and vapor pressure of iodine is negligible. PLS ANSWER THANKS.Which is the correct Ksp expression for Cr(OH)3(s) dissolving in water?Which statement is correct regarding the following reaction? (OC);Mn0)-Mn©(CO)s + Br2 -- -> 2Mn(÷1)Br(CO)5 The product has a higher CO frequency than the reactant. The product has a lower CO frequency than the reactant. The product has the same CO frequency than the reactant. A 16-electron complex is converted into an 18-electron complex
- 6.) The dissolution of barium sulfate in water at 25.0 °C has a Ksp value of 1.1 X 10-10. If solid barium sulfate is added to water, calculate the concentration of barium ions when the solution has reached saturation. (hint: use an ICE table)In the adsorption of a certain solute, from an aqueous solution on activated carbon at 21°C, the Freundlich constants are n=2.319 and K=0.702 when the equilibrium concentration c is expressed in mol/L a) If 0.1186 g. of this solute is adsorbed on 0.5017 g. of activated carbon at 21°C, find c b) Find the molar mass of solute adsorbed from 0.05 L of a solution whose initial concentration is 0.120 M.Irn/takeAssignment/takeCovalentActivity.do TripAdvisor Facebook [Review Topics] [References] Use the References to access important values if needed for this question. The equilibrium constant, K, for the following reaction is 55.6 at 698 K. H2 (g) + 1, (g)=2 HI (g) Calculate the equilibrium concentrations of reactants and product when 0.224 moles of H, and 0.224 moles of I, are introduced into a 1.00 L vessel at 698 K. [H2] = M [1] = [HI] = M M Submit Answer Retry Entire Group 1 more group attempt remaining Next Email Instructor Save and Exit Ceng