Equilibrium Constant and Reaction Quotient
This is the point in a reversible chemical reaction when the rate of the forward reaction is equal to the rate of the reverse reaction.
What is dynamic equlibrium?
This is the partial pressure of NO at equilibrium for the reaction shown below if PBr2 = 0.0159 atm and PNOBr = 0.0768 atm at equilibrium.
What is 0.0583 atm?
The addition or removal of this has no influence on equilibrium according to LeChatelier's Principle.
What is an inert/non-reactive gas (or catalyst)?
This is the product of the concentrations of aqueous ions in a saturated solution of a solid.
What is the solubility product constant (Ksp)?
The use of this in a reversible has a neutral effect on equilibrium because it reduces the activation energies of both directions of the reaction by the same amount.
What is a catalyst?
This type of energetic process favors products at equilibrium.
What is exothermic?
This is the equilibrium concentration of SO2 according to the reaction below if K = 3.75 and all four gasses have initial concentrations of 0.800 M.
SO2 (g) + NO2 (g) --> SO3 (g) + NO (g)
What is 0.545 M?
This is the expected shift in the reaction below if the volume is decreased.
2 BaO2 (s) --> 2 BaO (s) + O2 (g)
What is a reverse shift?
This conclusion can be drawn about the dissolution reaction when a solution is completely saturated.
What is that the reaction is at equilibrium?
This tells us that a reaction goes to completion or heavily favors products at equilibrium.
What is a very large K value?
This is the equilibrium constant expression for the reversible reaction shown below.
3 H2 (g) + N2 (g) --> 2 NH3 (g)
What is Kp = (PNH3)2 / (PH2)3 (PN2)
This is the partial pressure of NO in equilibrium with N2 and O2 which have initial pressures of 0.80 atm and 0.20 atm respectively, and Kp= 0.050.
What is 0.078 atm?
This is the expected shift in the reaction below if the pressure is decreased.
2 BaO2 (s) --> 2 BaO (s) + O2 (g)
What is a forward shift?
This is often equal to the value of x in a RICE table.
What is molar solubility?
When combining equations using Hess's law, if a reaction is reversed, this is is how K should be adjusted.
What is the reciprocal of K?
This is the concentration of A 10 seconds after starting the reaction below when the [B] = 1.0 and [C] = 2.25 and Q = 0.5625.
2 A (aq) --> B (aq) + C (aq)
What is 2.0 M?
This is the value of Kc for the reaction below when the equilibrium concentrations are found to be [NO] = 0.0542 M, [O2] = 0.127 M, and [NO2] = 15.5 M.
2 NO (g) + O2 (g) --> 2 NO2 (g)
What is 6.44 x 105?
This is the expected shift in an endothermic reaction when the temperature is decreased.
What is a reverse shift?
This is the molar solubility of AgCl in a solution with [Ag+] = 5.5 x 10-3 M and Ksp = 1.58 x 10-10.
What is 2.87 x 10-8 mol/L?
This indicates that a solid is soluble in water.
What is a Ksp value greater than 1?
This is the direction the reaction below will shift if Keq = 1.20 and [A] = 2.0 M, [B] = 1.5 M, [C] = 2.5 M, and [D] = 0.5 M.
A (aq) + 2 B (aq) --> 3 C (aq) + 2 D (aq)
What is forward (right)?
This is the initial concentration of nitrogen gas in the reaction shown below if [H2] = 5.0 M, [N2] = 8.0 M and [NH3] = 4.0 M at equilibrium.
3 H2 (g) + N2 (g) --> 2 NH3 (g)
What is 10.0 M?
This is the expected shift in the reaction below if 10 g of N2 are added to the reaction vessel.
N2 (g) + 3 H2 (g) --> 2 NH3 (g)
What is a forward shift?
This is the value of Ksp when AB3 is dissolved in water according to the reaction below and the equilibrium concentration of A3+ is 0.00213 M.
What is 5.5 x 10-10?
This is the solution with greater entropy with all other factors remaining equal.
A: Ksp = 5.92 x 10-15
B: Ksp = 6.92 x 10-22
What is solution A?