Additional Lecture 2. The Chemistry of Batteries (Intro to Solid-State Chemistry 2019)

[@AswanthCR7]

i wish i had this teacher

[@GGutierrez]

Voltmeter is not a conduit of electrons. Ideal voltmeter is an open circuit of infinite resistance. Voltmeter is measuring the POTENTIAL.

[@princeoftheblues]

Turn the nob to current

[@vitopettito1689]

@@princeoftheblues You can always tell who is book smart vs someone who has actual experience in industry using equipment.

[@anonymous.youtuber]

What a fantastic teacher 🙏🏻🙏🏻🙏🏻

[@babujidandigunta1298]

@ 40:38 Intuitively, it appears taking two electrons from two copper atoms (one from each 4s orbital) is easier than plucking two electrons from 4s orbital of a single Zinc atom ( to form Zn2+). In this case where one copper atom has to lose only one electron to reach stable configuration, It appears like two copper atoms combined, can easily achieve +2 oxidation state than a single Zinc atom (which has to lose 2 electrons from the same atom). Also, compared to copper zinc has an excess proton, so the (second) ionization potential should be more to from Zn2+. I could be wrong. Can someone please explain why this doesn't happen?

[@vla-everythingforeveryone564]

Those considerations are for gas phase and isolated ions. You need to consider another process, hydration of those ions from gas phase into aqueous solution. It turns out that Zn2+ is way better hydrated than Cu2+ .

[@spurti]

Copper is more electro negative than zinc according to linus pauling electro negativity scale.

[@mississippijohnfahey7175]

Around 39 minutes he gives a decent, quick explanation

[@beyondsyllabus954]

Is there a continuing lecture?

[@putinscat1208]

I'm at 11 mins and he is still dancing around the main subject.

[@mdsarfraj4087]

Design of hydrogen

[@Your_friend_infitinity]

Interesting talk but the presentation was a bit messy with rudimental coverage of science behind. Maybe, it is just adjusted for these students.

[@mississippijohnfahey7175]

Agreed. I understand it, but I've already got a BS. He glosses over too many concepts here. But most students at MIT seem to already have an undergraduate understanding of math, physics, and chemistry before their first day of class, so they might not be too lost either

[@putinscat1208]

These are MIT students. I would hope they have a basic understanding of the need for electricity in the modern world. I'm at 14 mins and he is still talking around the subject.

[@suleymancakr8947]

Altyazı niye koymuyonuz amq