CHEMISTRY COMMUNITY

Arjun Sharma 1D

In a concentration cell, why would you want your lower concentration reactant on the anode and the higher one on the cathode?

Arjun Sharma 1D

Yeah it's weird too cause the lower concentration ends up in the product according to the solution manual. Maybe it's because you have to flip the sign of the anode?

Arjun Sharma 1D

For question 14.41 part (a), why is the Cu2+ with lower concentration the anode and Cu2+ with higher concentration the cathode? I thought you would want it the other way around since it would flow from high concentration to low concentration and you would want that to be anode to cathode.

Arjun Sharma 1D

It's no fun cracking jokes in front of people who aren't spontaneous. Don't get much of a reaction.

Arjun Sharma 1D

Why did the chemist run slow in the relay race?

He wanted to be the rate determining step

Arjun Sharma 1D

Is there a chapter in out book that goes over the functional group stuff we've been covering?

Arjun Sharma 1D

How do the electrons get transferred from anode to the cathode? I understand that there's a wire involved, but do the electrons just kind of shoot through the wire?

Arjun Sharma 1D

Is there an equation that relates temperature and rate constants?

Arjun Sharma 1D

Wait I am confused, someone said mechanisms shouldn't be on the test and then also the class website says "Test 3 covers Kinetics Chapter 15.1 to end of 15.6"... why is everything fair game? Catalysts and a lot of the other topics weren't really covered in class were they (yet)? Im sure w...

Arjun Sharma 1D

Are negative orders going to be on test 3?

Arjun Sharma 1D

Why are chemists so great at solving problems?

Cause they work with all the solutions ;)

Arjun Sharma 1D

Organic Chemistry is difficult. Those who study it have alkynes of trouble.

Arjun Sharma 1D

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."

Arjun Sharma 1D

There was once a man who was frozen to absolute 0...
He’s 0K now

Arjun Sharma 1D

What did one charged ions say to the other?

I got my ion you ;)

Arjun Sharma 1D

What’s the advantage of having a salt bridge over a porous membrane again? How do both of the work?

Arjun Sharma 1D

f H2O is the formula for water, what is the formula for ice? H2O cubed ;)

Arjun Sharma 1D

What do you do with a sick chemist?
If you can't helium, and you can't curium, then you might as well barium.

Arjun Sharma 1D

I think I have an idea but just out of curiosity: how does the Sun transfer heat to the Earth?

Arjun Sharma 1D

I remember in one of Dr. Lavelle's lectures he reasoned that reversible processes do more work than irreversible processes because they're pushing against a higher external pressure. For instance, 2 atm pushing against 2 atm for reversible and 2 atm pushing against 1 atm for irreversible. But I was ...

Arjun Sharma 1D

Is this class Bruincasted? If so, where can I find it?

Arjun Sharma 1D

I have a couple of questions about situations where this equation is true. First, why is it that the surroundings give heat to the system to make up for energy lost as work? (I understand that it keeps the temperature constant, but is this just something we observe or?) Second, are these scenarios i...

Arjun Sharma 1D

Never trust an atom, they make up everything.

Arjun Sharma 1D

@Ramaya Lakkaraju 1B, I think it has to do with the fact that equation comes from situations where q=-w, which may only be true for reversible processes. Need confirmation on that though.

Arjun Sharma 1D

I think I understand the concept of a reversible expansion as it applies to problems we'll be doing in this class. But I don't understand the point of reversible expansion, like how does it apply to real life?

Arjun Sharma 1D

Are the formulas for Cv,m and Cv,p for atoms, linear molecules and non linear molecules (3/2R, 5/2R, etc) gonna be on test 1?

Arjun Sharma 1D

Met this girl in my calculus class; funny thing is we ended up having chemistry

Arjun Sharma 1D

In the equation H= U + PV, where does the PV at the end come from?

Arjun Sharma 1D

So think of a car going down a hill and theres something at the bottom of the hill the car's going to hit. If the car breaks on its downhill approach to the object, it uses more heat than work in the process. If the car doesn't break and wildly goes straight into the object, it uses more work than h...

Arjun Sharma 1D

To my understanding, yes w=-Pex(delta V) is for irreversible expansion. I believe the reason that reversible expansion requires a more complicated calculus based work equation is that it deals with an infinitely small change in volume.

Arjun Sharma 1D

Is the conversion of graphite to diamond a physical change or a chemical change?

Arjun Sharma 1D

It would probably be a good idea to know the names of the different phase changes in case they just use the specific name w/o description in a problem @Dylan Mai 1D

Arjun Sharma 1D

I was wondering how we visualize energy? Like between the different types (work energy, heat energy, etc.) is there any common thread that makes energy energy?

CHEMISTRY COMMUNITY

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Re: Question 14.41

Re: Question 14.41

Question 14.41

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Chapter for O-Chem

Galvanic Cells

Rate Constants and Temperature

Re: Week 9 HW and test promblems

Test 3

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Salt Bridge [ENDORSED]

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Heat from Sun

Reversible vs Irreversible Work

Bruin Cast

q=-w [ENDORSED]

Re: Post All Chemistry Jokes Here

Re: Reversible Expansion

Reversible Expansion

3/2R

Re: Post All Chemistry Jokes Here

Enthalpy equation

Re: state property

Re: Equations for calculating work for irreversible and reversible reactions

Physical Change vs Chemical Change

Re: Phase Changes

Energy