Chemical Equilibrium Padlet by Thomas Ellis https://padlet.com/thomasellis2653/9w4zqd9xchbr IB Chemistry Padlet for chemical equilibrium en-us 2016-11-21 14:37:28 UTC 2016-11-28 13:35:48 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Growing.png What is chemical equilibrium? thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139105063 Chemical equilibrium exists when the forward and reverse reactions occur at exactly the same rate. ]]> 2016-11-21 14:44:35 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139105063 Characteristics of Equilibrium: Dynamic thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139106557 The reaction has not stopped; the forward and backward reactions are still occurring. (Same rate.)

]]> 2016-11-21 14:48:07 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139106557 Achieved in a Closed System thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139107394 Prevents exchange of matter with surroundings, so equilibrium is still achieved where both reactants and products can react and recombine with each other. ]]> 2016-11-21 14:50:11 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139107394 Concentration of Reactants and Products Remain Constant thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139109359 They are being produced and destroyed at an equal rate.]]> 2016-11-21 14:55:06 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139109359 No Change in Macroscopic Properties thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139111413 Refers to observable properties such as color and density; these do not change as they depend on the concentrations of the components in the mixture.]]> 2016-11-21 14:59:45 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139111413 Can be Reached from Either Direction thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139113643 The same equilibrium mixture will result under the same conditions, no matter whether the reaction is started with all reactants, all products, or a mixture of both. ]]> 2016-11-21 15:05:46 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139113643 Law of Mass Action thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139114217 The proposition that the rate of a chemical reaction is directly proportional to the product of the activities or concentrations of the reactants. It explains and predicts behaviors of solutions in dynamic equilibrium.]]> 2016-11-21 15:07:20 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139114217 Equilibrium Expression thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139119498 2016-11-21 15:18:24 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139119498 ICE Method thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139119994
  • "I" stands for the initial concentrations (or pressures) for each species in the reaction mixture.
  • "C" represents the change in the concentrations (or pressures) for each species as the system moves towards equilibrium.
  • "E" represents the equilibrium concentrations (or pressures) of each species when the system is in a state of equilibrium.

    • ]]>     2016-11-21 15:19:07 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139119994     Le Chatlelier's Principle thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139121270 chemical principle that states that if a system in equilibrium is disturbed by changes in determining factors, such as temperature, pressure, and concentration of components, the system will tend to shift its equilibrium position so as to counteract the effect of the disturbance.]]> 2016-11-21 15:22:33 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139121270 Factors Affecting Principle: Concentration thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139123864 Increase in concentration: Reaction shifts to the right.

    Decrease in concentration: Reaction shifts to the left.]]>     2016-11-21 15:29:01 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139123864     Factors Affecting Principle: Temperature thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139127368 Increase in temp: Reaction shifts to the left.

    Decrease in temp: Reaction shifts to the right.]]>     2016-11-21 15:38:59 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139127368     Factors Affecting Principle: Pressure thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139129221 Increase in pressure: Reaction shifts to the right.

    Decrease in pressure: Reaction shifts to the left.]]>     2016-11-21 15:44:39 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139129221     Haber Process thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139130382
    The Haber Process combines nitrogen from the air with hydrogen derived mainly from natural gas (methane) into ammonia. The reaction is reversible and the production of ammonia is exothermic.
    ]]>     2016-11-21 15:47:58 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/139130382     Contact Process thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140140696 The contact process is the current method of producing sulfuric acid in the high concentrations needed for industrial processes. Platinum used to be the catalyst for this reaction; however, as it is susceptible to reacting with arsenic impurities in the sulfur feedstock, vanadium(V) oxide (V2O5) is now preferred.


    ]]>     2016-11-28 12:30:48 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140140696     Vapor Pressure thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140141145 The pressure of a vapor in contact with its liquid or solid form.]]> 2016-11-28 12:33:07 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140141145 Strong Intermolecular Forces thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140141471 Stronger intermolecular forces-
    Higher enthalpy of vaporization.

    Lower vapor pressure

    Higher boiling point]]>     2016-11-28 12:34:38 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140141471     Weak Intermolecular Forces thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140142029 Weaker intermolecular forces-
    Lower enthalpy of vaporization

    Higher vapor pressure

    Lower boiling point.]]>     2016-11-28 12:37:42 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140142029     Quiz thomasellis2653 https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140155983 1. What is chemical equilibrium?

    2. What is Le Chatlier's principle?

    3. Which three factors affect Le Chatlier's principle?

    4. What does the Contact Process produce?

    5. What does the Haber Process produce?

    6. What do the letters in ICE stand for?

    7. How many characteristics of equilibrium are there?

    8. What is the Law of Mass Action?

    9. What three things relate to a strong intermolecular force?

    10. What three things relate to weak intermolecular force? ]]>     2016-11-28 13:28:21 UTC https://padlet.com/thomasellis2653/9w4zqd9xchbr/wish/140155983