General Equilibrium
What is a chemical reaction in which the forward and reverse reactions are at equal rates?
equilibrium
If you add more reactants which way does equilibrium shift?
towards products
Which room is the new Year 12 study space in?
FLC 8
What does the symbol ⇌ mean in a chemical equation?
reversible
If you remove reactants which way does equilibrium shift?
towards reactants
When do you need an ICE table?
What is when equilibrium concentrations are unknown
If kc is greater than 1, what does that mean?
products are favored
On what day and date is the Chemistry exam? What time does it start?
Tuesday, November 10th, 9.00am
In an equilibrium expression, what do you exclude?
solids and liquids
If you increase pressure what is important in determining the direction of equilibrium?
number of moles
Initial concentrations for the reactant is 1.00 and for the product is 0. What will be the Change?
-x and +x
What do we do with the coefficients when writing an equilibrium expression?
write them as exponents
Half of you have 100% attendance (accounted for/approved) in Unit 4 Chemistry?
Xavier, Oscar, Ava, Fred, Naomi
If you change temperature what is important in determining the direction equilibrium will shift?
exothermic or endothermic
What do we solve for in ICE table?
equilibrium concentrations
What is the difference between Q and Kc?
Q is at any given moment, Kc is during equilibrium
How many Green Chemistry Principles are there?
12
Balance the equation CH4+O2→CO2+H2O
1, 2, 1, 2
What are three variables that affect an equilbrium system?
concentration, temperature, pressure
If the reactant has a greater value, where does it shift?
to the right (products)
Steps in writing the Kc expression
1. identify reactants and products
2. put products on numerator and reactants on denominator3. write coefficients as exponents
Will Oscar dress up as an old lady on Monday?
Yes. No. Maybe.