this vid and the one about PV diagrams and internal energy (about 4h long) summed up my entire thermodynamics in physics degree im so glad this vid exists
@@ahmadsleiman37 Probably thinking of thermochemistry. If not, chemistry and physics do tend to have many overlaps in some areas so im not too surprised.
thank you so much! with your videos I'm learning more than I have ever learned at school! i started to understand physics normally, all with the help of your explanation.
Absolute king, all your videos are so helpful! The lecture notes on thermodynamics were hard to understand but you just simplified the whole process thanks! Keep doing what you're doing
This video may be 7 years old, but DAMN it still holds up to it's quality. My professor is horrible at lecturing but this video clears up so many confusions and doubts. Thank you Julio. I don't know what I'd do without your videos.
I watched so many videos and looked up explanations on google to try to understand these topics but less than a couple minutes after watching your videos, everything just makes sense. You really break things down so simply. Thank you!! D:
Many Thanks for your time and this helpful video. My roommates said Thermodynamics is hard. however, in 1h :18 min and 25 second. I understand the HARD THERMODYNAMICS. May my almighty God bless you and give more energy to pu on the Helpful videos like this one . Again, thank you so every much for time and Bless you hear.
After this course unit and the results are out I will send this video to my lecturer to see how things are supposed to be done and explained not just to brag around. Thank you Sir
Hello... sir... Really really really.. Your videos are awesome.. I loved it, the way of your explanations.. Like a practical one.. Its amazing.. I dont want to memorize any formule after watching your videos. the thermodynamics and HMT is the most dangerous subjects in Mechanical Engineering.. But you made that things very easy for me..
First of all, WOW!! So helpful! I'm a little confused about the ideal gas problem - So in my ChemE thermo class we talk about the entropy change of an ideal gas as delta S = integral of Cp*dT/T - ln(P/P0)*R. Now this would equal zero for a reversible process, but nowhere in the problem does this say that it is reversible and the only ispentropic processes are reversible and adiabatic. I'm not sure what to think because your reasoning makes sense here but I'm sure if you have an irreversible adiabatic process there's an entropy change, as all irreversible processes have entropy changes. This is quite a thinker...
For temperature differences and weighted averaging, you don't need to convert to Kelvin. You ultimately need Kelvin before you plug it in to the rest of the equation, but it isn't necessary to convert in advance of averaging. (T1 + T2)/2 + K will give the same outcome as: (T1 + K + T2 + K)/2 Where the two T's give temperature in Celsius, and the K is the Celsius to Kelvin conversion adder of 273.15 Kelvin.
one question 1:10:00 , isn't the net change in entropy of a heat engine affected by the work done by the engine? Is there a differnce between a carnot engine and a regular heat engine?
There are different sign conventions. The heat engine sign convention assigns work as positive when the system provides the work, and heat as positive when it is added to the system.
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this vid and the one about PV diagrams and internal energy (about 4h long) summed up my entire thermodynamics in physics degree
im so glad this vid exists
I'm confused, I am given to study thermodynamics as in chemistry and everyone is saying its physics tf?
@@ahmadsleiman37 Probably thinking of thermochemistry. If not, chemistry and physics do tend to have many overlaps in some areas so im not too surprised.
@@ahmadsleiman37 u teach thermodynamics?
thats a very simple and light thermodynamics mod you have there then
@@ahmadsleiman37 in my classes, thermodynamics is in both subjects.
messy room is the best analogy I have heard for entropy 10/10 stars!
Thanks
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thank you so much! with your videos I'm learning more than I have ever learned at school! i started to understand physics normally, all with the help of your explanation.
hey, mechanical engineering bouncing back to get his F.E. i had a bad teacher 3 years ago in college and have to say this is a life saver. thank you!
Absolute king, all your videos are so helpful! The lecture notes on thermodynamics were hard to understand but you just simplified the whole process thanks! Keep doing what you're doing
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This video may be 7 years old, but DAMN it still holds up to it's quality. My professor is horrible at lecturing but this video clears up so many confusions and doubts. Thank you Julio. I don't know what I'd do without your videos.
I watched so many videos and looked up explanations on google to try to understand these topics but less than a couple minutes after watching your videos, everything just makes sense. You really break things down so simply. Thank you!! D:
Entropy starts at 56:17
Thank you!!
@@miayaklevich893 You are welcome! All thanks to Organic Chemistry Tutor, for his amazing Videos!
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Many Thanks for your time and this helpful video. My roommates said Thermodynamics is hard. however, in 1h :18 min and 25 second. I understand the HARD THERMODYNAMICS. May my almighty God bless you and give more energy to pu on the Helpful videos like this one . Again, thank you so every much for time and Bless you hear.
You didn't really understand it but whatever
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After this course unit and the results are out I will send this video to my lecturer to see how things are supposed to be done and explained not just to brag around. Thank you Sir
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Can you make a playlist for thermodynamics
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Hello... sir... Really really really.. Your videos are awesome.. I loved it, the way of your explanations.. Like a practical one.. Its amazing.. I dont want to memorize any formule after watching your videos. the thermodynamics and HMT is the most dangerous subjects in Mechanical Engineering.. But you made that things very easy for me..
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Great video, but I'm a bit confused at 19:14 . It's 154 kW so shouldn't the answer be 13.3 GW rather than MW?
Yeah, it should.
Yes, you are right the answer should be given in Kj's.
yup! Or 1.33*10^10 J
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In 19:19, why the unit is J?
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First of all, WOW!! So helpful! I'm a little confused about the ideal gas problem - So in my ChemE thermo class we talk about the entropy change of an ideal gas as delta S = integral of Cp*dT/T - ln(P/P0)*R. Now this would equal zero for a reversible process, but nowhere in the problem does this say that it is reversible and the only ispentropic processes are reversible and adiabatic. I'm not sure what to think because your reasoning makes sense here but I'm sure if you have an irreversible adiabatic process there's an entropy change, as all irreversible processes have entropy changes. This is quite a thinker...
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Please make a video on residual properties in thermodynamics
This is Amazing! What’s the difference between Ql and Qc please?
Ql means heat LOST , Qc means heat from the COLD reservoir or to the COLD reservoir
Lmk if u understand
Mans doing God’s work here.
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1:13:06 Shouldn't you convert to Kelvin first, and then take the average? 323K vs 338K
For temperature differences and weighted averaging, you don't need to convert to Kelvin. You ultimately need Kelvin before you plug it in to the rest of the equation, but it isn't necessary to convert in advance of averaging.
(T1 + T2)/2 + K
will give the same outcome as:
(T1 + K + T2 + K)/2
Where the two T's give temperature in Celsius, and the K is the Celsius to Kelvin conversion adder of 273.15 Kelvin.
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please do something on rankine cycle
one question 1:10:00 , isn't the net change in entropy of a heat engine affected by the work done by the engine? Is there a differnce between a carnot engine and a regular heat engine?
Very helpful!!! thanks a ton
1 ton= 1000kg.
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@19:19, is that Joules or is it supposed to be KJ since we were dealing with KW?
Yeah I think it should be KJ
at 19:20, werent we suppossed to write the answer in KJ??
When work is done on the system, to compress the gas, the work is positive because it is added into the system.
There are different sign conventions. The heat engine sign convention assigns work as positive when the system provides the work, and heat as positive when it is added to the system.
19:15 13.3millionKJ or 13.3GJ
I was searching for this comment
💜 awesome vid!
awesome .. thanks bro