Making Connections - SCH4U1-CCVI
... disorder increases, since ____________ The following increases entropy: 1. The volume of a gas increases 2. The temperature of the system increases 3. Physical state solid to liquid to gas 4. Increase in the number of moles produced 5. Breaking complex molecules into smaller ones 3rd Law of Thermo ...
... disorder increases, since ____________ The following increases entropy: 1. The volume of a gas increases 2. The temperature of the system increases 3. Physical state solid to liquid to gas 4. Increase in the number of moles produced 5. Breaking complex molecules into smaller ones 3rd Law of Thermo ...
File - Mr. J`s Chemistry 4U
... Zinc atoms have a greater tendency to lose electrons than do copper atoms. Aluminum can replace zinc. Cobalt can replace sodium. Flourine is the most active halogen. Any metal above magnesium replaces hydrogen from water. Any metal above hydrogen reacts with acids, replacing hydrogen. Elements near ...
... Zinc atoms have a greater tendency to lose electrons than do copper atoms. Aluminum can replace zinc. Cobalt can replace sodium. Flourine is the most active halogen. Any metal above magnesium replaces hydrogen from water. Any metal above hydrogen reacts with acids, replacing hydrogen. Elements near ...
Unit 5 Practice Problems (with answers at end) - H
... using the thermodynamic tables in your study guide. Is this reaction spontaneous at room temperature? 15. Calculate So for the reaction above. What does this value suggest? Why is the sign what it is? 16. Assuming the temperature is 25oC, calculate Ho for the reaction above, using the results in t ...
... using the thermodynamic tables in your study guide. Is this reaction spontaneous at room temperature? 15. Calculate So for the reaction above. What does this value suggest? Why is the sign what it is? 16. Assuming the temperature is 25oC, calculate Ho for the reaction above, using the results in t ...
Second Semester Extra Review
... c) heat 4. What factors determine whether a reaction is spontaneous or not? 5. Calculate the Gibb’s free energy if the entropy is 0.555 kJ/mol K and enthalpy is 56.9 kJ/mol at 25C. Is this reaction spontaneous? 6. What factors affect rate of a reaction? 7. What are the two conditions to have an eff ...
... c) heat 4. What factors determine whether a reaction is spontaneous or not? 5. Calculate the Gibb’s free energy if the entropy is 0.555 kJ/mol K and enthalpy is 56.9 kJ/mol at 25C. Is this reaction spontaneous? 6. What factors affect rate of a reaction? 7. What are the two conditions to have an eff ...
PP - Columbia University
... Reaction goes spontaneously to the right If energy change is negative: spontaneously to the right = exergonic: energy-releasing If energy change is positive: spontaneously to the left = endergonic: energy-requiring ...
... Reaction goes spontaneously to the right If energy change is negative: spontaneously to the right = exergonic: energy-releasing If energy change is positive: spontaneously to the left = endergonic: energy-requiring ...
mechanisms - Manasquan Public Schools
... • But this gives us no info on HOW FAST reaction goes from reactants to products. ...
... • But this gives us no info on HOW FAST reaction goes from reactants to products. ...
enthalpy worksheet
... amount of energy is greater than the energy required to break the old bonds in the reactants. ∆Hrxn = Hproducts - Hreactants (small # - BIG#) = - negative # For example: 4Fe + 3O2 2Fe2O3 ∆Hrxn = -1625 kJ For endothermic reactions, enthalpy values are always positive, that is that energy of the pro ...
... amount of energy is greater than the energy required to break the old bonds in the reactants. ∆Hrxn = Hproducts - Hreactants (small # - BIG#) = - negative # For example: 4Fe + 3O2 2Fe2O3 ∆Hrxn = -1625 kJ For endothermic reactions, enthalpy values are always positive, that is that energy of the pro ...
Review for SNC 2P Chemistry Unit(SPRING 2014)
... (c) A family of elements that includes sodium and potassium ___________________________ ...
... (c) A family of elements that includes sodium and potassium ___________________________ ...
General Equilibrium
... described by the activity coefficient X and [X]: aX = X[X] In dilute solutions, the activity coefficient approaches unity. Often, experimental conditions allow us to assume activity coefficients of one so that concentrations can be substituted for activities. (This assumption isn’t always good!) ...
... described by the activity coefficient X and [X]: aX = X[X] In dilute solutions, the activity coefficient approaches unity. Often, experimental conditions allow us to assume activity coefficients of one so that concentrations can be substituted for activities. (This assumption isn’t always good!) ...
File - chemistryattweed
... production of ammonia because two molecules of gaseous ammonia occupy a smaller volume than the four molecules of gaseous reactants. High pressure also increases the reaction rate because the gas molecules are closer and at higher concentrations. However, high-pressure equipment is expensive and r ...
... production of ammonia because two molecules of gaseous ammonia occupy a smaller volume than the four molecules of gaseous reactants. High pressure also increases the reaction rate because the gas molecules are closer and at higher concentrations. However, high-pressure equipment is expensive and r ...
Name - rwebbchem
... 1. Would a precipitate form from a reaction of aluminum chloride and sodium hydroxide? If yes, write and balance the equation that illustrates the reaction. ...
... 1. Would a precipitate form from a reaction of aluminum chloride and sodium hydroxide? If yes, write and balance the equation that illustrates the reaction. ...
Reactions Homework Packet
... 1. Calculate the oxidation state of each element in each of the following: ...
... 1. Calculate the oxidation state of each element in each of the following: ...
Enzymes
... orientation for the reaction. As the active site binds the substrate, it may put stress on bonds that must be broken, making it easier to reach the transition state. R groups at the active site may create a conducive microenvironment for a specific reaction. Enzymes may even bind covalently to subst ...
... orientation for the reaction. As the active site binds the substrate, it may put stress on bonds that must be broken, making it easier to reach the transition state. R groups at the active site may create a conducive microenvironment for a specific reaction. Enzymes may even bind covalently to subst ...
Chemical Synthesis
... • Should: Be able to make a soluble salt. • Could: Explain all the stages and techniques used. • Keywords: Synthesis, techniques, plan reactant and product. ...
... • Should: Be able to make a soluble salt. • Could: Explain all the stages and techniques used. • Keywords: Synthesis, techniques, plan reactant and product. ...
Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.