Stress: __Decreasing temperature (______________________)
How rxn tries to remove stress: _________________________________________________
Circle: Make more product or more reactant
Circle: Favoring: Forward (exo or endothermic) rxn or Backward ( exo or endothermic) rxn
Circle: Shift Equilibrium to: Left(more reactant) or Right (more product)
k. For the chemical reaction: 2 H2S(g) <--> 2 H2(g) + S2(g)
Stress: __Increasing pressure (______________________)
How rxn tries to remove stress: _________________________________________________
Circle: Make more product or more reactant
Circle: Favoring: Forward rxn or Backward rxn
Circle: Shift Equilibrium to: Left(more reactant) or Right (more product)
l. For the following chemical reaction:(yellow) 2 CrO42- + 2 H3O+ <==> Cr2O72- + H2O (orange)
Stress: Adding in NaOH (_______________________________________________________________)
How rxn tries to remove stress: _________________________________________________
Circle: Make more product or more reactant
Circle: Favoring: Forward rxn or Backward rxn
Circle: Shift Equilibrium to: Left(more reactant) or Right (more product)
Solution turned: More Yellow or More Orange or No change
m. At 300degC, the following chemical reaction reaches equilibrium in a 2.5L container.
3 H2(g) + 1 N2(g) <==> 2NH3(g)
At equilibrium, there are 3.25moles N2, 2.75mole H2, and 4.25moles NH3. What is the equilibrium constant (K) and what are its units. (Hint, make sure sure you write down equilibrium constant expression first)
n. At 25deg C, the following chemical reaction occurs in a 0.5L container and has a K=0.045.
2 H2(g) + 1 O2(g) <==> 2 H2O(g)
At equilibrium, there are 1.49moles H2 and 3.45moles O2. What is the equilibrium concentration of h2O?
(Hint, make sure sure you write down equilibrium constant expression first)
o. For reaction 2 SO2(g) + O2(g) <--> 2 SO3(g)
a 1.00-L container initially has 3.50 moles of SO2 and 2.00mole O2. If 1.30moles of O2 react to reach equilibrium, what are the equilibrium concentrations of all species and then calculated K (equilibrium constant). Include units of K? 2014-2015 DO NOT DO THIS PROBLEM
Answer:
k. K=1.67M-2
L. [H2O]E = 1.66M
m. [SO2]E = 0.900M, [O2]E = 0.700M, [SO3]E = 2.60M, K=11.9M-1