Search found 34 matches

by IsabelLight2H
Sun Mar 17, 2019 12:12 am
Forum: Phase Changes & Related Calculations
Topic: heating curve
Replies: 1
Views: 156

Re: heating curve

I think it’s the like the endo and exothermic activation energy graph.
by IsabelLight2H
Sun Mar 17, 2019 12:11 am
Forum: General Rate Laws
Topic: pseudo rate laws
Replies: 4
Views: 237

Re: pseudo rate laws

How do you know the overall order for a pseudo reaction?
by IsabelLight2H
Sun Mar 17, 2019 12:11 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: salts and buffers
Replies: 1
Views: 180

Re: salts and buffers

Did we even cover buffers?
by IsabelLight2H
Fri Mar 08, 2019 1:01 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Unique Average Rate
Replies: 5
Views: 138

Re: Unique Average Rate

What's an example problem of when we would have to use the unique average rate?
by IsabelLight2H
Fri Mar 08, 2019 12:59 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: The slope of the tangent line with respect to the rate
Replies: 3
Views: 80

Re: The slope of the tangent line with respect to the rate

Do we have to ever take the derivative for this class or does he give us the derived formula?
by IsabelLight2H
Sat Mar 02, 2019 11:17 pm
Forum: Zero Order Reactions
Topic: Units
Replies: 3
Views: 78

Re: Units

Are there units for K?
by IsabelLight2H
Sat Mar 02, 2019 11:12 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Element's potentials
Replies: 5
Views: 131

Re: Element's potentials

The more negative the E° the stronger the reducing agent!
by IsabelLight2H
Sat Mar 02, 2019 11:10 pm
Forum: Second Order Reactions
Topic: Pseudo-first-order reaction
Replies: 4
Views: 105

Re: Pseudo-first-order reaction

What’s the difference between a pseudo reaction and a reaction? Also a first and second order?
by IsabelLight2H
Sat Mar 02, 2019 11:08 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: w vs wmax
Replies: 5
Views: 113

Re: w vs wmax

Why does it not measure expansion work?
by IsabelLight2H
Fri Feb 22, 2019 10:42 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Relationship between K and G
Replies: 3
Views: 90

Re: Relationship between K and G

if Q<K and it's spontaneous does that mean the forward reaction is stable?
by IsabelLight2H
Fri Feb 22, 2019 10:41 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Gibbs Free Energy
Replies: 4
Views: 79

Re: Gibbs Free Energy

How do we know if it's stable or not based on the spontaneity?
by IsabelLight2H
Tue Feb 12, 2019 3:32 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: q=mCdeltaT
Replies: 11
Views: 1006

Re: q=mCdeltaT

I would just make sure your final answer is in the units they ask for! Don't give moles if they ask for mass and vice versa!
by IsabelLight2H
Tue Feb 12, 2019 3:31 pm
Forum: Phase Changes & Related Calculations
Topic: reversible processes and equilibrium
Replies: 4
Views: 116

Re: reversible processes and equilibrium

what are the equations for reversible vs. irreversible?
by IsabelLight2H
Tue Feb 12, 2019 3:28 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Irreversible vs Reversible
Replies: 3
Views: 76

Re: Irreversible vs Reversible

Is there reversible and irreversible for w and q? what are they dependent on?
by IsabelLight2H
Sun Feb 10, 2019 10:51 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Isochoric
Replies: 3
Views: 92

Re: Isochoric

Have we covered this in lecture?
by IsabelLight2H
Sun Feb 10, 2019 10:51 pm
Forum: Phase Changes & Related Calculations
Topic: Heat vs Q
Replies: 5
Views: 77

Re: Heat vs Q

I thought q was the change in heat? Since we can only measure the flow?
by IsabelLight2H
Tue Feb 05, 2019 4:07 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Midterm [ENDORSED]
Replies: 49
Views: 1407

Re: Midterm [ENDORSED]

Also never had Lavelle before and am not sure how conceptual the questions will be. Or will it be more calculations? Also are midterms and finals similar to the test we've already taken?
by IsabelLight2H
Thu Jan 31, 2019 11:58 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Surroundings
Replies: 11
Views: 159

Re: Surroundings

didn't he say something about how it may not affect surroundings? like pouring your water bottle into the ocean wouldn't greatly affect the ocean. What is the term for this?
by IsabelLight2H
Thu Jan 31, 2019 11:56 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bomb Calorimeter
Replies: 2
Views: 68

Re: Bomb Calorimeter

Does a bomb calorimeter have a constant pressure and volume?
by IsabelLight2H
Thu Jan 31, 2019 11:53 am
Forum: Calculating Work of Expansion
Topic: calculation of work of irreversible and reversible expansion
Replies: 5
Views: 93

Re: calculation of work of irreversible and reversible expansion

What formulas do we use for reversible vs irreversible and why do we not use the same equation?
by IsabelLight2H
Thu Jan 31, 2019 11:52 am
Forum: Calculating Work of Expansion
Topic: calculation of work of irreversible and reversible expansion
Replies: 5
Views: 93

Re: calculation of work of irreversible and reversible expansion

How do I know if an expansion is reversible and irreversible?
by IsabelLight2H
Thu Jan 31, 2019 11:52 am
Forum: Calculating Work of Expansion
Topic: calculation of work of irreversible and reversible expansion
Replies: 5
Views: 93

Re: calculation of work of irreversible and reversible expansion

How do I know if an expansion is reversible and irreversible?
by IsabelLight2H
Thu Jan 31, 2019 11:51 am
Forum: Calculating Work of Expansion
Topic: calculation of work of irreversible and reversible expansion
Replies: 5
Views: 93

Re: calculation of work of irreversible and reversible expansion

Can someone explain the differences between reversible and irreversible reactions?
by IsabelLight2H
Mon Jan 28, 2019 2:59 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Cp and Cv
Replies: 5
Views: 306

Re: Cp and Cv

If a system has Cp can it also have a Cv? and Vice Versa?
by IsabelLight2H
Fri Jan 25, 2019 12:05 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: delta H and pressure
Replies: 2
Views: 61

Re: delta H and pressure

If the pressure is not constant, delta H will not be accurate and should be recalculated.
by IsabelLight2H
Fri Jan 25, 2019 12:00 am
Forum: Phase Changes & Related Calculations
Topic: State functions
Replies: 4
Views: 81

Re: State functions

But doesn't only the final heat value matter? Wouldn't that make it a state function?
by IsabelLight2H
Thu Jan 24, 2019 11:57 pm
Forum: Phase Changes & Related Calculations
Topic: Endothermic or Exothermic
Replies: 20
Views: 587

Re: Endothermic or Exothermic

How do I know if it's endothermic or exothermic if there's no delta H given?
by IsabelLight2H
Mon Jan 21, 2019 11:34 pm
Forum: Phase Changes & Related Calculations
Topic: Endothermic or Exothermic
Replies: 20
Views: 587

Re: Endothermic or Exothermic

How do I know if it's endothermic or exothermic?
by IsabelLight2H
Mon Jan 21, 2019 11:33 pm
Forum: Phase Changes & Related Calculations
Topic: How to tell acids and bases
Replies: 8
Views: 184

Re: How to tell acids and bases

Typically, you just look at how it would react with water. Lot's of times if it has a negative charge, it's a base and a positive charge will be an acid.
by IsabelLight2H
Mon Jan 21, 2019 11:27 pm
Forum: Ideal Gases
Topic: kc vs kp
Replies: 16
Views: 482

Re: kc vs kp

If they just say "k" do we assume Kp? Because in one problem in the textbook they used K and then it was Kc.
by IsabelLight2H
Sun Jan 13, 2019 11:34 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Inert Gases
Replies: 2
Views: 39

Inert Gases

How do you know if a gas that is added is inert and if it will affect the equilibrium?
by IsabelLight2H
Sun Jan 13, 2019 11:31 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Catalyst
Replies: 4
Views: 51

Re: Catalyst

Is a catalyst represented in a balanced chemical equation?
by IsabelLight2H
Sun Jan 13, 2019 11:27 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q and K considered different
Replies: 2
Views: 64

Q and K considered different

What distance should be between Q and K for them to be considered different? For example, if K=0.56 and Q=0.50 could they be considered the same?

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