An example of a quasi-static process that is not idealizable as reversible is slow heat transfer between two bodies on two finitely different temperatures, where the heat transfer rate is controlled by a poorly conductive partition between the two bodies.
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What is the meaning of quasi-static?
quasistatic (comparative more quasistatic, superlative most quasistatic) (of a physical process) Happening so slowly as to appear to be static. (physics) In a state of dynamic equilibrium.
What does quasi mean in physics?
The termQuasi particles describes a physical concept, which treats elementary excitations in solids, like spin waves, as particles. As the particles do not consist of matter, they are called quasi particles.
What are quasi-static processes Class 12?
Solution : A quasi-static process is an infinitely slow process in which the system changes its variables (P,V,T) so slowly such that it remains in thermal, mechanical and chemical equilibrium with its surroundings throughout. Loading Books. Answer.
Is also called quasi-static process?
A quasi-static process (also known as a quasi-equilibrium process) is a type of thermodynamic process. A thermodynamic process that occurs slowly enough for the system to maintain internal thermodynamic equilibrium (from the Latin quasi, meaning “as if”).
What is a quasi-static and non quasi-static process?
In a quasi-static process, the path of the process between A and B can be drawn in a state diagram since all the states that the system goes through are known. In a non-quasi-static process, the states between A and B are not known, and hence no path can be drawn.
Why quasi-static process is important?
The importance of quasi static processes is precisely that they can be considered to involve a system that is permanently in equilibrium, both within itself and with its surroundings.
What is a quasi state example?
Such quasi-states include the Republika Srpska and Herzeg-Bosnia during the Bosnian War and Azawad during the 2012 Tuareg rebellion. The Islamic State is also widely held to be an example of a modern quasi-state or proto-state.
What is a quasi-static process and reversible work?
To summary, quasistatic process is the process in which every instantaneous states is equilibrium;reversible process is the quasistatic process in which the entropy does not increase,but the quasistatic is not necessarily a reversible, that depents on the entropyโincreasing or not.
What is meant by quasi particle?
(หkweษชsaษชหpษrtษชkษl ) noun. Physics. a phonon, exciton, or other similar entity that has particlelike properties, as mass or energy.
How do you spell quasi static?
What is a dynamic process?
A dynamic process is one that constantly changes and progresses.
What is non quasi-static process?
2.9 NON QUASI-STATIC PROCESS If a process is carried out in such a way that at every instant the system departs finitely from thermodynamic equilibrium state, such a process is called Non quasi-static process.
What is a quasi-static process what is its characteristic feature?
A quasi-static process is a process in which the state variables of a thermodynamical system change infinitely slowly, thus the system appears nearly static. It is a hypothetical and ideal process which is reversible and experiences thermodynamic equilibrium at every stage of the process.
What is static process?
Static (structured) processes are those processes which are unchangeable in form, as well as those processes which change over a long period of time.
What is quasi-static process Quora?
A quasi static process is a process carried out very very slowly, in an attempt to reach as close as possible to a reversible process. For a change in a system, we have the relation – dS = + I. dS represents the change in entropy. represents the entropy transferred into or out of the system.
Is quasi-static process isothermal?
An isothermal process studied in this chapter is quasi-statically performed, since to be isothermal throughout the change of volume, you must be able to state the temperature of the system at each step, which is possible only if the system is in thermal equilibrium continuously.
Why quasi-static process is reversible?
A process, carried out in a stepwise manner, becomes quasi-static when the number of intermediate steps tends to infinity. Usually, the net entropy production approaches zero under this limiting condition. Hence, such cases are termed reversible.
What are the 4 thermodynamic processes?
- Isobaric process in which the pressure (P) is kept constant (ฮP =0).
- Isochoric process in which the volume (V) is kept constant (ฮV =0).
- Isothermal process in which the temperature (T) is kept constant (ฮT =0).
- Adiabatic process in which the heat transfer is zero (Q=0).
What is Zeroth law of thermodynamics in physics?
The zeroth law of thermodynamics states that if two bodies are each in thermal equilibrium with some third body, then they are also in equilibrium with each other.
Is reversible adiabatic process is quasi-static?
– Any reversible process is also quasi-static, but the reverse is not necessarily true. – Simple systems undergoing reversible processes have no internal gradients of temperature or pressure. – Friction and other dissipative forces are not present in reversible processes.
What is Second law of thermodynamics class 11 physics?
The second law of thermodynamics states that any spontaneously occurring process will always lead to an escalation in the entropy (S) of the universe. In simple words, the law explains that an isolated system’s entropy will never decrease over time.
What is isothermal and adiabatic process?
The process in which there is no exchange of heat between the system an the surrounding is known as adiabatic process. The process during which the temperature of gas remains constant is known as isothermal process.
What is a cyclic process called?
What is a Cyclic Process? The process in which the initial and final states are the same is known as a cyclic process. It is a sequence of processes that leave the system in the same state in which it started. When a system undergoes a cyclic process, its initial and final internal energies are equal.
What is quasi stable state?
1. In an entity, a state of the entity such that (a) it remains stable for a finite period and (b) at the end of the period, it assumes a permanent stable state.