thermodynamics criteria for non equilibrium States
Hello,
For understanding non-equilibrium thermodynamics the thermodynamic equilibrium has to be understood.
Thermodynamic Equilibrium - A system is in thermodynamic equilibrium if its fundamental properties do not undergo any change with time , i.e., Change in volume, pressure, temperature , no of molecules all equal to zero.
Thermodynamic Non-Equilibrium - This kind of system is actually trying to achieve thermodynamic equilibrium and therefore all the fundamental properties like Volume, Pressure, Temperature and number of moles are undergoing change with respect to time.
So for Thermodynamic Non-Equilibrium >> Δ V ≠ Δ P ≠ Δ T ≠ Δ n ≠ 0 . This is the criteria followed
what is the definition of thermodynamics
Hi,
In the word thermodynamics therma stands for heat and dynamics stands for the change.
So we can define thermodynamics as -
"Thermodynamic is the branch of science which deals with the processes of energy and heat changes and their relationship with each other ."
what is the difference between chapters thermodynamics of physics and chemistry should i study both the chapters ?
For Example - In Chemistry we take work done by the system as negative while in physics as positive.
yo should study both as there is not much difference once you study in one subject, it will not take much time to study other subject thermodynamics, you just have to remember some basic sign and convention.
ratio of molar specific heat to monoatomic gas is
Hello sir
We know that molar specific heat or molar heat capacity is the amount of energy i.e. ( heat energy) re quired to increase the temperature of a substance of one mole And monatomic gases are the gases which are free to move here and there.
So, ratio of molar specific heat is Cp/Cv. We know that value of Cp and Cv for monatomic gases is 5R/2 and 3R/2. Then according to formula (Cp/Cv) is (5R/2)/(3R/2) = 1.66
explain the calculation of work done from P V diagram
Hi,
A pressure–volume diagram or PV diagram, or volume–pressure loop) is used to describe corresponding changes in volume and pressure in a system.
The product of pressure and volume is represented y an area on a P-V diagram. The area under the curve on a P-V diagram tells us the work done during the process. This can be found by adding up the areas of lots of thin rectangles, each of which corresponds to a constant (or very nearly constant) pressure.
Hope this helps.
I am getting 67.37 marks in GATE 2020 in XE (Engineering Sciences paper) with subjects Fluid Mechanics and Thermodynamics. Which IITs can I expect?
Hi Shasi,
As per your marks and previous year cutoff, the colleges you get are:-
National Institute of Technology Manipur -- Thermal & Fluids Engineering
National Institute of Technology Karnataka Surathkal-- Materials Engineering
Malaviya National Institute of Technology Jaipur-- Materials Science & Engineering
Indian Institute of Engineering Science and Technology Shibpur-- Materials Science & Technology
To know more about your chances of getting other colleges check out the PSU/college predictor link below:
https://engineering.careers360.com/gate-college-predictor
i want to study astronomy but i dont know almost anything about it where should i start with?
HI,
see when we start a bachelor course after 10+2 we just start from the initial step, it is not only you who do not have the depth knowledge, no one knows in depth about any career line, when starts a new journey of education. see astronomy is related with physics and mathematics, it involves the studies of space, gravitational energy, phenomena occurs in the atmosphere etc. so if you are really interested in this things than you should go for it.
What is 1st law of thermodynamics??
Hello Buddhu,
There are total three laws of thermodynamics: zeroth law, first law and second law.
The first law of thermodynamics statement is same as the statement for conservation of energy which says that energy can neither be created not destroyed. It can only be transformed from one form to the other. Heat engine is an example for the first law of Thermodynamics.
what books should i follow for semester preparation as well as for gate and other exams for thermodynamics strength of materials fluid mechanics? I am presently pursuing mechanical engineering
hi,
for semester preparation you should follow the books suggested by you to your college faculty. see gate and semester exam is totally two different type exam, for understanding for basic conceptual part any good text book will be good. gate is numerical question type exam. you need to solve as many of questions for gate. follow the previous years paper, you will get an idea. schaums series books are best for numerical practice.
this was a honable request why would automobiles are not eligible for SSC Je exams I observe the syllabus of mechanicals in SSC Je exams that topics are also related to automobiles like ic engine/ lubrication and thermodynamics properties etc.. a sincere request for give answer for this.. Thank you.
hi,
see ssc junior engineer has vacancy for diploma in mechanical, civil or electrical branch. you may find similarity and knowledge of mechanical syllabus, but you are not eligible to apply if you dont belongs to any of the similar branch or any combinational branch like, electrical and electronics engineer can apply for electrical branch. hope you may understand.