It was my Physical Chemistry exam today and this helped me the most. I can't thank you enough. Keep up the good work Sarah. ❤

Oh my god. This helps me a lot!! I have no idea what my professor has taught. You've just saved my Physical Chem I !!!

Thank you so much for your kind efforts. It is really excellent.

3rd best learned in my physical chem class

This is by far the best teaching of thermodynamics I have found. However I will leave a piece of constructive criticism - you say "okay" too much and it can be distracting. Don't take this as an offense, but as an attempt to make the best even better. Cheers!

You are an awesome teacher. Thanks, Sarah

Thank you for sharing and putting the teaching togethers.

You are amazing. Clear and precise with the explanation and examples. Thank you a ton for this great vid 🤌🏽

Thanks again Sarah . but you mixed up the temperatures for problem 2.2.2. at 1:12:26 in the video

This was really helpful! Thank you so much!

you helped me in the night before my test thankssss

Thank you so much for clear sharing this.. It helps me a lot..

that's soooo clear!!❤️❤️🔥🔥

Thank you!!!

Super helpful!!! thank you!!!

I LOVE YOU!

On problem 2.2.2. Why do we use the same initial temperature of 150°C when calculating Entropy for the Cold sample.

in the last example, 2 variables are being changed in all steps but you apply only one variable change formula?

The heat source in the case of IC engines is from the spark plugs? Change in Internal Energy in the case of IC Engines is from the fuel addition? How about Steam Engine or steam Turbines? The heat source in the case of steam engines or steam turbines is from burning coal used to change water into steam? Change in Internal Energy in the case of steam Engine or steam turbines is from a change in Internal energy from the water changing into steam inside the boiler? Basically the system includes the fuel, steam and the mechanical parts? The system includes the gas and the mechanical parts in case of the gas turbine? & the change in internal energy of the working substance is the hidden force (thermodynamic force) behind the external work that we see as shaft movement or rotation. Please verify thanks

Isn't Cp for He going to be 3/2R because 3 Degree of Freedom as translational and it cannot have rotational or vibrational DOF..? (It's just an atom, not linear or non-linear)

Found an error @ 1:12:32, the Tinitial B should be 273 not 423

Crazy How I'm a dropout and studying this shit by myself lmao

💓💓💓💓💓

Mommy❤❤

you are the best but please stop saying okay :(

There is also a 4th law of thermodynamics as entropy is dual! From a converging, convex or syntropic perspective everything looks divergent, concave or entropic -- the 2nd law of thermodynamics. All observers have a localized, focused or syntropic perspective. Mind (the internal soul, syntropy) is dual to matter (the external soul, entropy) -- Descartes or Plato's divided line. My syntropy is your entropy and your syntropy is my entropy -- duality. Syntropy (prediction) is dual to increasing entropy -- the 4th law of thermodynamics. Teleological physics (syntropy) is dual to non-teleological physics (entropy). Ellipsoids are dual to hyperboloids -- linear algebra & matrices, Gilbert Strang. Positive curvature is dual to negative curvature -- Gauss, Riemann geometry. Curvature or gravitation is dual -- gravitational energy is dual. There are patterns of duality hardwired into physics, mathematics & philosophy. Homology is dual to co-homology. Integration is dual to differentiation. Homology and integration reduce the number of dimensions or states -- a syntropic process. Co-homology and differentiation increase the number of dimensions or states -- an entropic process. Syntropy (convergent) is dual to increasing entropy (divergent) -- the 4th law of thermodynamics. Gaussian negative curvature is defined by at least two points -- non null homotopic. The big bang is a negative curvature singularity or a white hole -- Janus hole/point. Janus holes/points have two faces (duality) -- Julian Barbour, physicist. Points are dual to lines -- the principle of duality in geometry. Null homotopic is dual to non null homotopic. Topological holes cannot be shrunk down to zero -- non null homotopic. The "bridge" between elliptic curves & modular forms is duality! Injective is dual to surjective synthesizes bijective or isomorphism. Thesis is dual to anti-thesis leads to the converging thesis or synthesis -- the time independent Hegelian dialectic. Isomorphism is duality: two differing descriptions or aspects of the same thing. Gravitation is equivalent or dual (isomorphic) to acceleration -- Einstein's happiest thought, the principle of equivalence (duality). "Always two there are" -- Yoda. Duality is hardwired into the laws of physics & mathematics!

Nice video! But you shouldn't say OK or K so often...

love how you explain it all, but could you please don't say "okay" so much. all of my focus will here only "okay" and not the wonder full explanations that you give. sorry for asking you this, and i really don t say this to offend you. so please don t love the teaching that you give. very kind regards, michieal

kkkkkkkk

I'm not going to count the times you say "okay?". Work on your presentation-skilss, my dear.