化学平衡小测验2.pptx

Chemical Equilibrium;The exothermic reaction A ? B reaches an equilibrium conversion of 25% in an adiabatic steady-state flow reactor. Which of the following will likely increase conversion?;The endothermic reaction A ? B reaches an equilibrium conversion of 25% in an adiabatic steady-state flow reactor. Which of the following will likely increase conversion?;Why are most reactions carried out on a large scale exothermic (not endothermic)?;Which is the correct energy balance plot (extent of reaction vs. temperature) for an adiabatic, exothermic reaction?;Consider the two reaction and their equilibrium constants: A + B ? C K1 = 1000 A + D ? 3 E K2 = 78 Which conclusion is correct?;For a gas phase reaction: A + B ?? C + D What are the units of the equilibrium constant?;For the gas phase reaction: The equilibrium constant is 10 at 2 atm. What is the equilibrium constant at 10 atm?;What is the expression for the equilibrium constant for the following reaction? A(l) and C(l) are immiscible, B is an ideal gas. Assume that B does not dissolve in liquids A or C. ;For which reaction would the equilibrium conversion increase if inert gases were added to a flow system at constant total pressure?;As the total pressure is increased for the following reaction, what will happen to Ka and to the equilibrium extent of reaction?;Given the following reaction: If steam is added to the feed and everything else kept the same, the equilibrium conversion ___________. ;This reaction goes to equilibrium at 400°C in a closed container under two starting conditions: 100 g Pd, 1 mol O2 100 g Pd, 1 mol O2, 1 g PdO The initial O2 pressure is high enough to reach equilibrium. The Pd and PdO are in separte phases. The final O2 pressure is _____________.;A constant volume system contains CaO(s), CaCO3(s), and CO2(g) at chemical equilibrium at 850 K. When 0.1 mol N2 is injected into the system at 850 K and constant pressure, what happens? Assume ideal gases.;A piston-cylind