Search found 16 matches
- Sat Mar 16, 2019 9:12 pm
- Forum: Zero Order Reactions
- Topic: third order
- Replies: 11
- Views: 1224
Re: third order
In lecture he mentioned that they are unlikely and he placed more emphasis on understanding the 0th, 1st, and 2nd order.
- Sat Mar 16, 2019 9:10 pm
- Forum: General Science Questions
- Topic: Questions on Final
- Replies: 2
- Views: 882
Re: Questions on Final
I would expect there to be more emphasis on questions regarding electrochemistry and kinetics, with the same format/style as the midterm questions but he didn't specify.
- Sat Mar 16, 2019 9:07 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Q VS. K
- Replies: 13
- Views: 1640
Re: Q VS. K
K is the reaction at equilibrium and Q is used to calculate the ratio at anytime, but they are both calculated the same way. If Q<K then the reactants are favored and will shift towards the products (forward. If Q>K then the products are favored and will shift towards the reactants (reverse).
- Sat Mar 16, 2019 9:03 pm
- Forum: Phase Changes & Related Calculations
- Topic: removing heat from system
- Replies: 4
- Views: 681
Re: removing heat from system
Even though the temperature doesn't always change, knowing if the reaction is exothermic or endothermic helps indicate the enthalpy.
- Sat Mar 16, 2019 9:01 pm
- Forum: Phase Changes & Related Calculations
- Topic: Isothermal
- Replies: 9
- Views: 1146
Re: Isothermal
It will usually indicate that the temperature is constant, but it is safe to assume that the reaction is isothermal.
- Sat Mar 16, 2019 8:56 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Bimolecular
- Replies: 13
- Views: 2261
Re: Bimolecular
Henry Dudley 1G wrote:Can a bimolecular reaction be third order if one of the reactants is second order?
I believe in lecture he showed that a bimolecular reaction was specifically related to reactants that are/add up to second order only. For third order (which he said was unlikely) they were labeled as termolecular.
- Sat Mar 16, 2019 8:51 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Final
- Replies: 3
- Views: 1529
Re: Final
It helps doing practice problems and going over problems in the exams and midterms. Also, it's ideal that you understand how to use equations and understand how some relate to each other.
- Sun Mar 10, 2019 10:49 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Test 2
- Replies: 12
- Views: 1121
Re: Test 2
Delta G would be less than zero because combustion releases heat and is spontaneous.
- Sun Mar 10, 2019 10:47 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Intermediate species
- Replies: 2
- Views: 375
Re: Intermediate species
An intermediate species is temporary during a reaction that helps it go to completion. Despite this, it is not normally produced at the end.
- Sun Mar 10, 2019 10:41 pm
- Forum: Zero Order Reactions
- Topic: Meaning of Zero, First, and Second Order?
- Replies: 4
- Views: 637
Re: Meaning of Zero, First, and Second Order?
The orders correspond to the sum of the reactants' individual orders. It's helpful looking at the particular graphs to determine the overall reaction order.
- Tue Feb 26, 2019 9:45 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: n
- Replies: 8
- Views: 848
Re: n
In lecture he said that n is based on the number of moles of electrons gained/lost in the redox reaction.
- Tue Feb 26, 2019 9:43 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Reducing Agent/ Oxidizing Agent Strength in Metals
- Replies: 3
- Views: 696
Re: Reducing Agent/ Oxidizing Agent Strength in Metals
The metal is stronger as a reducing agent when the standard potential is more negative and vice versa when the standard potential is more positive, the metal is stronger as an oxidizing agent.
- Tue Feb 26, 2019 9:39 pm
- Forum: Balancing Redox Reactions
- Topic: Balancing Redox Reactions
- Replies: 3
- Views: 405
Re: Balancing Redox Reactions
The reaction was reversed because it was Cu that was being oxidized during the reaction, meaning that it occurred in the anode.
- Tue Feb 26, 2019 9:36 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Moles of electrons?
- Replies: 6
- Views: 582
Re: Moles of electrons?
It helps to balance out the half reactions to see how many moles of electrons are gained/lost.
- Tue Feb 19, 2019 10:25 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Delta G a state function?
- Replies: 23
- Views: 2839
Re: Delta G a state function?
Yes because it is inclusive of two other state functions
- Tue Feb 19, 2019 10:23 pm
- Forum: Student Social/Study Group
- Topic: Test
- Replies: 17
- Views: 1590
Re: Test
Will the second in class test be cumulative up to Gibbs free energy and electrochemistry?