thermotutor.bsky.social @thermotutor.bsky.social · 17/10/2025Sign up for free at thermo-tutor.qwyzzee.com and get instant access to 400 questions, hints, and answers. Plus try our AI grading and follow-up questions 🔥 #pchem #chemsky 010
thermotutor.bsky.social @thermotutor.bsky.social · 10/10/2025James Prescott Joule died on this day in 1889. He measured how motion turns into heat and helped define the first law of thermodynamics. His name became the unit of energy. #PChem #Joule #Thermodynamics #Chemistry #Physics 000
thermotutor.bsky.social @thermotutor.bsky.social · 09/10/2025path-independent means that U is a function of state and the value of ∆U = U_f - U_i is independent of the details of how you got from i=initial to f=final. So if reversible paths give you this dU, then all irreversible paths produce the same dU. 010
thermotutor.bsky.social @thermotutor.bsky.social · 09/10/2025What is the fundamental equation of thermodynamics, and where does it come from? #thermodynamics #pchem #chemistry #physics #studyhelp 110
thermotutor.bsky.social @thermotutor.bsky.social · 08/10/2025hope this will be useful to students and instructors! 010
thermotutor.bsky.social @thermotutor.bsky.social · 08/10/2025Carnot cycles now as live web app 🔥 Drag sliders to see how temperature & volume affect the cycle. Works on any device, no installation needed. Try it: thermoscripts-carnot.streamlit.app #thermodynamics #pchem #chemistry #physics 110
thermotutor.bsky.social @thermotutor.bsky.social · 08/10/2025Plot Carnot cycles with this simple MATLAB script! Hot (red) and cold (blue) isotherms plus two adiabats (black) form a closed cycle. Change T's, V's, gamma ... most cycles look quite skinny 🌙🔥 github.com/osteinbock/t... #thermodynamics #pchem #physics #engineering 010
thermotutor.bsky.social @thermotutor.bsky.social · 03/10/2025How you do things matters a lot in thermodynamics! #thermo #pchem #chemistry #physics #studyhelp 010
thermotutor.bsky.social @thermotutor.bsky.social · 02/10/2025Unfortunately, there is one wrong word in this video... microstate "2" has only >one< microscopic realization, namely {1,1}. But I couldn't find the internal energy U to record it again 😅 000
thermotutor.bsky.social @thermotutor.bsky.social · 02/10/2025Entropy explained in less than 1 minute #thermodynamics #pchem #chemistry #Boltzmann 110
thermotutor.bsky.social @thermotutor.bsky.social · 01/10/2025Another fascinating and useful thermodynamic quantity: the compressibility kappa. Unlike many other partial derivatives in thermo, this one has a direct intuitive meaning ... how much does volume drop when you increase pressure? #thermodynamics #pchem #ChemE #physics #studyhelp 010
thermotutor.bsky.social @thermotutor.bsky.social · 30/09/2025The volumetric expansion coefficient α is a quantity relevant to many real-world applications. It also appears in (∂U/∂T)p = Cv + πT α V, where πT is the internal pressure and Cv the heat capacity at const V. #thermodynamics #pchem #ChemE #physics #studyhelp 010
thermotutor.bsky.social @thermotutor.bsky.social · 28/09/2025Internal pressure is the key to quantifying the invisible forces between molecules. 🧪 #thermodynamics #pchem #ChemE #physics #studyhelp 010
thermotutor.bsky.social @thermotutor.bsky.social · 28/09/2025Gemini 2.5 pro is the best for physical chemistry. While it's hard to know the training sources, I believe Wikipedia is a big part of it. Good or bad, I predict that Wikipedia will be absorbed into some forms of LLM. Perhaps they should develop/integrate their own if financially possible? 000
thermotutor.bsky.social @thermotutor.bsky.social · 26/09/2025Only if you completely rely on AI summaries. Otherwise, it's just a fancier form of Google Scholar search. All of this is forced on us by the extreme volume of papers. My retired faculty colleagues still tried to read every paper in J. Phys. Chem. ... now you publish on page 13517 in JPC C 010
thermotutor.bsky.social @thermotutor.bsky.social · 26/09/2025First thermo exam coming up? Try this drill to master partial derivatives: Euler’s chain rule meets the ideal gas law. #thermodynamics #pchem #chemistry #physics #chemicalengineering #studytips 010
thermotutor.bsky.social @thermotutor.bsky.social · 25/09/2025Understanding the equation for isothermal, reversible expansion work. A short ThermoTutor demo. #PChem #Thermodynamics #GasLaws #LearnSmarter #Chemistry 010
thermotutor.bsky.social @thermotutor.bsky.social · 24/09/2025The internal energy of an ideal gas depends only on temperature, so during adiabatic expansion (q=0), a drop in U means a drop in T. Therefore, peeVee gets colder, not sweatier 🧊🥶 000
thermotutor.bsky.social @thermotutor.bsky.social · 24/09/2025During adiabatic expansion, peeVee's internal energy is going down, but should he really be sweating or shivering? #thermodynamics #pchem #chemistry #physics #studyhelp 110
thermotutor.bsky.social @thermotutor.bsky.social · 23/09/2025Thermochemistry tells you whether processes are endothermic 🥶 (ΔH>0) or exothermic (ΔH<0) 💥 #thermodynamics #pchem #chemistry #studygram #HessLaw 000
thermotutor.bsky.social @thermotutor.bsky.social · 22/09/2025It's not about the journey, it's about the destination... at least for state functions! 🏔 #thermodynamics #pchem #chemistry #studyhelp 010
thermotutor.bsky.social @thermotutor.bsky.social · 21/09/2025Say hi to our mascots ... happy peeVee and grumpy nRT #thermodynamics #pchem #chemistry #physics #studyhelp 000
thermotutor.bsky.social @thermotutor.bsky.social · 20/09/2025For **real gases**, particles do have intermolecular forces (like van der Waals forces). Therefore, changing the volume does change the internal energy, even at constant temperature, because it alters the potential energy component. 020
thermotutor.bsky.social @thermotutor.bsky.social · 20/09/2025ThermoTutor demo explaining why the internal energy of ideal gases depends only on T and not on p or V. #PChem #Thermodynamics #GasLaws #LearnSmarter #Chemistry 110
thermotutor.bsky.social @thermotutor.bsky.social · 19/09/2025... did I mention the poor, prisoners, and soldiers? Here is the truth about his soup 010
thermotutor.bsky.social @thermotutor.bsky.social · 19/09/2025Count Rumford (aka Benjamin Thompson) was one of the early pioneers of modern thermodynamics. He was a prolific scientist and inventor. #thermodynamics #pchem #chemistry #physics #StudyHelp 110
thermotutor.bsky.social @thermotutor.bsky.social · 19/09/2025Sorry, I didn't read the document, but isn't this "rounding half to even" (default in IEEE 754)? 000
thermotutor.bsky.social @thermotutor.bsky.social · 18/09/2025Why does a spray can feel cold when you use it? Adiabatic expansion! 💨 It does work as it expands, and with no heat transfer, its temperature has to drop. Often, q=0 is a valid approximation if the process is fast compared to the heat exchange. #Thermodynamics #PChem #Chemistry 020
thermotutor.bsky.social @thermotutor.bsky.social · 17/09/2025@osteinbock.bsky.social Why does your voice sound weird after inhaling helium? The speed of sound depends on the molar mass M and heat capacity ratio γ. This γ is also key for adiabats pV^γ = const. #thermodynamics #pchem #chemistry #physics #studyhelp 020
thermotutor.bsky.social @thermotutor.bsky.social · 16/09/2025Solids and liquids barely expand when heated, so their Cp and Cv are nearly the same. Gases, on the other hand, expand a lot, and that makes Cp - Cv significantly larger. Learn more with ThermoTutor. #chemistry #pchem #thermodynamics #physics #chemicalengineering 010
thermotutor.bsky.social @thermotutor.bsky.social · 15/09/2025ThermoTutor demo showing how to find Boyle's law from the ideal gas equation. No need to memorize Avogadro, Charles, Gay-Lussac, and Boyle. Just apply the conditions to pV=nRT! #PChem #Thermodynamics #GasLaws #LearnSmarter #Chemistry 010
thermotutor.bsky.social @thermotutor.bsky.social · 14/09/2025Einstein saw what many students initially miss. Thermodynamics is not just steam engines and gas laws; it’s the spine of science. #pchem #chemistry #thermodynamics #ThermoTutor 120
thermotutor.bsky.social @thermotutor.bsky.social · 14/09/2025One of the first confusions in thermodynamics is why there are multiple values of the gas constant. The answer is simple: it depends on the units you choose. For speed, pick the one that matches your problem's units. Memorize both or just the one in SI units. 010
thermotutor.bsky.social @thermotutor.bsky.social · 13/09/2025What technology gave rise to the gas laws? The air pump! It made pressure visible and vacuum real. Its inventor also showed that light can pass through a vacuum, but sound cannot. The spectacular demonstration in the picture took place in 1654, in front of Emperor Ferdinand III. 010
thermotutor.bsky.social @thermotutor.bsky.social · 12/09/2025The man behind the van der Waals equation that explains why real gases aren't ideal. What is "a" and what is "b"? Ask our ThermoTutor! #Thermodynamics #PChem 020
thermotutor.bsky.social @thermotutor.bsky.social · 12/09/2025Quick introduction to ThermoTutor. Get personalized thermodynamics tutoring with instant feedback and follow-up conversations. This 3-minute demo shows how ThermoTutor works, from problem selection to grading to asking follow-up questions. #chemistry #studyhelp #pchem 031
