14.3 Mechanisms, Catalysts, and Reaction Coordinate Diagrams

[@avac3036]

Love your videos. I like the stories you throw in, you have a very energetic teaching style. It's from 2017 but still helping students 4 years later. I almost feel like I'm in an actual chemistry class despite all my college chem lectures sadly being on zoom. Thank you!

[@ChadsPrep]

Great to hear, AC!

[@Frida2024]

Love love love your analogies and examples!! Currently struggling with enzymatics and your active teaching style really makes stick. Thank you!!

[@ChadsPrep]

Glad you're finding them helpful BP. If you're studying enzymatics perhaps it is in a biochemistry context? I don't have them presently here on youtube but I do have a set of a free set of biochemistry videos on my website which include a chapter an Enzyme Kinetics. Here's the URL for the first lesson in that chapter: www.chadsprep.com/chads-elementary-biochemistry-videos/4-1-introduction-to-enzyme-kinetics/ Hope this helps and Happy Studying!

[@Frida2024]

@@ChadsPrep Yes, sir- biochemistry specifically for the MCAT, so I'm trying to make connections between concepts and your videos are really helpful for this. Thank you for the link!

[@ryanashi]

18 months old, I was just dying laughing. Thank you!

[@ChadsPrep]

You're welcome Ryan!!! Coincidentally, don't you have an approximate 18 month old right about now? Hope you all are well! I still remember the first day of TA training and I was totally not expecting you as "Ryan Yanashima" when I took attendance!😜

[@symonec2240]

"18 months old" lmaoooo

[@ChadsPrep]

And now it's memorable...Mission Accomplished!

[@HZMusic613]

@@ChadsPrep I thought the memorable part was Nargis's dumb little sister. Chad I have to say again you are a Legend.

[@neelpatel9219]

Who knew you would learn bit of geography too from Chad's example of catalyst providing alternate pathway! 😂

[@ChadsPrep]

never missing an opportunity for learning :)

[@triple_gem_shining]

I'm heading straight for argentina

[@purbasimran]

To label the delta H in a reaction coordinate diagram, do we simply look at how far the reactants are from products on the y axis? What if we have an exothermic 2 step reaction where both the first and second steps have a higher Ea in the reverse reactions compared to their forward reaction? Is the delta H still how far the STARTING reactants (of step 1) are from the final products on the y axis? Or is delta H the difference in the intermediate to the products? I hope the question makes sense.

[@ChadsPrep]

The difference in energy (on the y-axis) between the reactant and product is indeed delta H for the reaction. It is a state function and is independent of path, depending only on the initial and final state. Hope this helps!

[@rachelmanavi4819]

these are amazing thank you so much

[@ChadsPrep]

Glad you like them, Rachel - you are welcome!

[@KazmaAttack]

I wish my chemistry teacher would use footlong turd analogies

[@ChadsPrep]

Mnemonics work!

[@mattkrug6335]

i may actually pass my exam now, lol.

[@ChadsPrep]

Glad to hear this helps, Matt. Good luck on your exam!