Search found 38 matches

by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:07 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Effect of temp. on rate constants
Replies: 3
Views: 73

Re: Effect of temp. on rate constants

Thank you so much this really helps!
by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:06 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalysts vs Intermediates
Replies: 4
Views: 43

Re: Catalysts vs Intermediates

Catalysts are there from the beginning and are never used up. Intermediates are formed at some point in the reaction
by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:06 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: frequency factor
Replies: 2
Views: 45

Re: frequency factor

You don't really need to know what the correct orientation but you will need to know how often or "frequently" they are in the correct orientation to collide and form the product
by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:04 am
Forum: General Rate Laws
Topic: Final
Replies: 9
Views: 147

Re: Final

I feel that he will be strict on units but my TA said that they will probably be lenient on the sig figs
by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:03 am
Forum: Zero Order Reactions
Topic: Order distinction
Replies: 9
Views: 134

Re: Order distinction

Add the exponents of the rate law to get the overall order of the reaction
by Shreya_Bharadwaj_1D
Fri Mar 15, 2019 12:01 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885764

Re: Post All Chemistry Jokes Here

What do you call an acid with attitude?
An a-mean-o Acid
by Shreya_Bharadwaj_1D
Thu Mar 14, 2019 11:59 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: pseudo rate law
Replies: 7
Views: 126

Re: pseudo rate law

I remember reading about it in the textbook but never really haering about it in class
by Shreya_Bharadwaj_1D
Thu Mar 14, 2019 11:58 pm
Forum: General Rate Laws
Topic: slow/fast steps
Replies: 7
Views: 76

Re: slow/fast steps

I think they will tell us
by Shreya_Bharadwaj_1D
Thu Mar 14, 2019 11:57 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: k’ and A
Replies: 4
Views: 72

Re: k’ and A

k' represents the rate constant of the reaction and A represents the collision factor
by Shreya_Bharadwaj_1D
Sun Mar 03, 2019 8:24 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885764

Re: Post All Chemistry Jokes Here

Did you know that you can cool yourself to -273.15˚C and still be 0k?
by Shreya_Bharadwaj_1D
Sun Mar 03, 2019 8:23 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: Final exam
Replies: 8
Views: 169

Re: Final exam

Sunday, March 17th from 11:30 am to 2:30 pm
by Shreya_Bharadwaj_1D
Sun Mar 03, 2019 8:23 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: Final exam
Replies: 8
Views: 169

Re: Final exam

Sunday, March 17th from 11:30 am to 2:30 pm
by Shreya_Bharadwaj_1D
Sun Mar 03, 2019 8:21 pm
Forum: Van't Hoff Equation
Topic: Van't Hoff use
Replies: 13
Views: 271

Re: Van't Hoff use

You would use the Van't Hoff equation when you are given two temperatures and a K value
by Shreya_Bharadwaj_1D
Sun Mar 03, 2019 8:20 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Q and K with the Nernst Equation
Replies: 3
Views: 64

Re: Q and K with the Nernst Equation

I think you would have to find both because you would need to know if they are equal, or if Q is greater than K or if K is greater than Q
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:58 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Pressure Equation
Replies: 7
Views: 181

Re: Pressure Equation

When calculating change in entropy given constant Temperature, moles, and volume
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:56 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Delta G a state function?
Replies: 23
Views: 267

Re: Delta G a state function?

Yes, Delta G is also a state function
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:55 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: Isolated system
Replies: 10
Views: 217

Re: Isolated system

It is so closed that matter cannot exit or enter the system and it is so insulated that no energy or heat can escape by way of changing pressures or temperatures
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:41 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: constant C
Replies: 7
Views: 138

Re: constant C

Cv is for a constant volume, Cp is for a constant pressure, and C is just the general term for specific heat
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:39 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: constant C
Replies: 7
Views: 138

Re: constant C

Cv is for a constant volume, Cp is for a constant pressure, and C is just the general term for specific heat
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:35 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: What to do when temperature isn't given
Replies: 8
Views: 117

Re: What to do when temperature isn't given

Usually at standard conditions, the temperature is simply 25 degrees Celcius or 298 Kelvin but the temperature is usually given for Gibb's Free Energy
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:32 pm
Forum: Student Social/Study Group
Topic: Test
Replies: 17
Views: 333

Re: Test

Will Test #2 cover the thermodynamics that we learned prior to the midterm or just what we learn between the midterm and the test?
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:29 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: Final exam
Replies: 8
Views: 169

Re: Final exam

The final exam is Sunday March 17th at 11:30 to 2:30 pm
by Shreya_Bharadwaj_1D
Tue Feb 19, 2019 9:28 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885764

Re: Post All Chemistry Jokes Here

Did you hear Magnesium and Oxygen are a couple now?? OMg!!
by Shreya_Bharadwaj_1D
Sat Feb 09, 2019 3:59 pm
Forum: Phase Changes & Related Calculations
Topic: Why does steam cause severe burns?
Replies: 2
Views: 41

Re: Why does steam cause severe burns?

Thank you! I was wondering the same thing and this explanation really helped!
by Shreya_Bharadwaj_1D
Sat Feb 09, 2019 3:58 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Delta H's
Replies: 1
Views: 39

Delta H's

What is the difference between ΔHf^o and ΔHf
by Shreya_Bharadwaj_1D
Sat Feb 09, 2019 3:53 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885764

Re: Post All Chemistry Jokes Here

I don't trust atoms because they make up everything
by Shreya_Bharadwaj_1D
Wed Jan 30, 2019 5:35 pm
Forum: Phase Changes & Related Calculations
Topic: Week 4 Homework
Replies: 12
Views: 185

Re: Week 4 Homework

Technically, yes, but I would stick to what we are currently learning in class because some of the later homework problems require you to read further in the book
by Shreya_Bharadwaj_1D
Wed Jan 30, 2019 5:34 pm
Forum: Ideal Gases
Topic: kc vs kp
Replies: 16
Views: 269

Re: kc vs kp

They both are found and used using the same methods but Kc is used for concentration and Kp is used for pressures of gasses
by Shreya_Bharadwaj_1D
Wed Jan 30, 2019 5:32 pm
Forum: Phase Changes & Related Calculations
Topic: Water phase change graph
Replies: 6
Views: 73

Re: Water phase change graph

The lines with a zero-slope represent an increase in temperature for a substance at a single state and the lines with positive slopes represent phase changes
by Shreya_Bharadwaj_1D
Wed Jan 23, 2019 6:22 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885764

Re: Post All Chemistry Jokes Here

Wanna hear a Potassium joke?
K :)
by Shreya_Bharadwaj_1D
Wed Jan 23, 2019 6:20 pm
Forum: Student Social/Study Group
Topic: UA Worksheets
Replies: 2
Views: 104

Re: UA Worksheets

I was wondering the same thing, too. I was wondering if someone could post a solution key with the problem worked out so that I can see how to do the problem and where I went wrong
by Shreya_Bharadwaj_1D
Wed Jan 23, 2019 6:18 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE boxes
Replies: 5
Views: 80

Re: ICE boxes

Ice boxes can be used to find any equilibrium value whether it be concentration or partial pressure
by Shreya_Bharadwaj_1D
Wed Jan 16, 2019 1:16 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Kw
Replies: 4
Views: 73

Re: Kw

Kw refers to the concentration of water molecules and since water is a neutral substance on the pH scale, the concentrations of [H3O+] and [OH-] are the same because when you calculate the pH given these numbers, you will get 7, which is right in the middle of the pH scale
by Shreya_Bharadwaj_1D
Wed Jan 16, 2019 1:13 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Negative pH
Replies: 12
Views: 258

Re: Negative pH

Most acids that we use in class will probably be from 0 to 14 on the pH scale and we are unlikely to run into any "superacids" that have negative pHs
by Shreya_Bharadwaj_1D
Wed Jan 16, 2019 1:05 am
Forum: Ideal Gases
Topic: Using Kc or Kp
Replies: 13
Views: 135

Re: Using Kc or Kp

You would use Kc when dealing with concentrations of substances and Kp when dealing with the partial pressures of gases
by Shreya_Bharadwaj_1D
Mon Jan 14, 2019 12:26 am
Forum: Ideal Gases
Topic: Homework Week 2
Replies: 10
Views: 138

Re: Homework Week 2

Yes your homework is due during your discussion section!
by Shreya_Bharadwaj_1D
Mon Jan 14, 2019 12:23 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: equilibrium
Replies: 4
Views: 48

Re: equilibrium

It just means that when a reaction sits to the left, the reactants are favored and when a reaction sits to the right, the products are favored
by Shreya_Bharadwaj_1D
Mon Jan 14, 2019 12:18 am
Forum: Ideal Gases
Topic: Denoting brackets/parentheses
Replies: 9
Views: 106

Re: Denoting brackets/parentheses

You would use the brackets to denote concentrations or molarity and use parentheses to indicate partial pressure

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