Question

explain cyclic ,reversible Irreversible process





question regarding to physics

Answer 1

reversible process does not increase entropy (of the system and surroundings). During a reversible process, the system is in thermodynamic equilibrium with its surroundings throughout the entire process. In science, a process that is not reversible is called irreversible.

An irreversible process is a process that cannot return both the system and the surroundings to their original conditions. That is, the system and the surroundings would not return to their original conditions if the process was reversed.

All the cyclic process are Reversible but not all reversible process are cyclic. ... When a thermodynamic system from its initial states goes through different processes or change of states and finally returns to its initial state then it is said that the system has undergone a cycle.

Answer 2

here's your answer
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=>CYVLIC PROCESS:
1) process in which the system after passing through various stages return to its initial state is called cyclic process
2) in cyclic process change in internal energy of the system is zero for first law of thermodynamics
dQ= dU + dW

3) total heat absorbed is converted into work done
4) P-V graph for cyclic process is closed curve

=> REVERSIBLE PROCESS:
1) a process that can be retraced back in opposite direction in such a way that the system password through the same States as indirect process and final is system and surroundings return to their original state

conditions for reversible process;
a) changes must takes place at infinite slow
b) rate there is no loss of energy

eg: peltier and seebeck effect ,fusion of ice and vaporization of water and etccc

=>IRREVERSIBLE PROCESS:
1) the process that cannot be retracted back in opposite direction is called as reversible process
all the spontaneous natural process of Irreversible
eg: diffusion of gasses , magnetism of materials ,work done against friction

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