Kinetics
What does a rate law represent?
What is how changes in the amount of substances affect the speed of a reaction?
Why are solids and liquids excluded from equilibrium expressions?
What is the concentration of solids and liquids remain the same?
At equilibrium, [A] =0.50, [B]=0.25, [C] = 1.00 for:
2A + B = C, solve for K
What is 16.?
If pressure increases in a system with gases, what direction does equilibrium shift?
What is towards the side with fewer moles of gas?
What does Q compare?
What is current state versus equilibrium (K)?
A reaction has the rate law: Rate = k[A]2[B]. What is the overall order?
What is 3rd order?
RANDOM DOUBLE JEOPARDY: Where are the smallest bones in the human body located?
What is in the ear?
For A = B, K = 4.0, and the initial concentration of [A] = 1.0 M, find the equilibrium concentration of B.
What is 0.80 M?
For: N2 + 3H2 = 2NH3, What happens if volume increases?
What is it shifts to the side with more gas molecules (to the left)?
If Q<K, which direction will the reaction shift?
What is to the right (towards the products) ?
RANDOM DOUBLE JEOPARDY: Coca-Cola was first sold in _______ (year).
What is 1886?
Write the K for:
2SO2 (g) + O2 (g) = 2SO3 (g)
What is K = [SO3]2/([SO2]2[O2]) ?
For: N2O4 (g) = 2NO2 (g), K = 0.36 and the initial concentration for [N2O4] = 1.00 M. Find [NO2] at equilibrium.
What is 0.52 M?
A reaction shifts right when temperature increases. Is it endothermic or exothermic?
For: CO + H2O = CO2 + H2, K = 2.5
If all concentrations are doubled, how would Q change?
What is Q would not change?
Mechanism:
Step 1 (slow): 3A + B --> C
Step 2 (fast): C + D --> E
What is the rate law?
What is Rate = k[A]3[B]?
Given the series of steps below, calculate the overall equilibrium constant.
A3+ (aq) + NH2- (aq) = ANH22+ (aq), K = 200.
ANH22+ (aq) + NH2- = A(NH2)2+ (aq), K =125.
What is 2.50 x 104?
For the reaction: I2 (g) + Cl2 (g) = ICl (g), what is the Kc when you begin with 4.5 moles of I2 and 2.1 moles of Cl2 in a 2.000 L container. At equilibrium it is determined that the concentration of ICl is 1.9 M.
What is 28?
A catalyst is added. What happens to the equilibrium position and rate?
What is the equilibrium position does not change but the rate increases?
RANDOM DOUBLE JEOPARDY: Ancient Romans used ________ as mouthwash.
What is urine?
Mechanism: (= is equilibrium sign)
Step 1 (fast): 2A + B = C
Step 2 (fast): C + 2D = E
Step 3 (slow): E --> F
What is the rate law?
What is Rate = k[A]2[B][D]2?
DOUBLE JEOPARDY: Given the following (be careful!)...
(1) N2O4 (g) = NO2 (g)
(2) NO2 (g) + H2O (l) = HNO2 (aq) + HNO3 (aq)
(3) HNO2 (aq) = H+ (aq) + NO2- (aq)
(4) HNO3 (aq) = H+ (aq) + NO3- (aq)
Write the overall equilibrium expression.
What is K = [H+]2[NO2-][NO3-]/[N2O4] ?
Given: A3 (l) + 2 AB (g) = A (l) + 2A2B (g), Kp = 0.25. Initially, there is 4.00 atm of AB. Find the equilibrium PPs for all components of this reaction.
What is PAB = 2.7 atm and PA2B = 1.3 atm ?
RANDOM DOUBLE JEOPARDY: Odontophobia is the fear of ______.
What is teeth?
Determine the direction that the reaction will proceed in to reach equilibrium given...
3Cl2 (g) + CS2 (g) = CCl4 (g) + S2Cl2 (g), K = 6.75 x 105, and both reactants have a PP of 0.0100 atm and the products have a PP of 0.100 atm.
What is it will shift to the left (towards the reactants) because Q>K?