About Quasi-static process
Quasi-static process
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| Quasi-static process |
Consider a system as shown in figure the system initially is in equilibrium state as weights on the Piston just balances upward force exerted by the gas. If all the weights are removed suddenly the Piston will move up rapidly upto the stops.Thus the system changes from initial state to final state which is again in equilibrium.But the intermediate States passed through by the system are not under equilibrium and hence the process is not a quasi-static.
A non-quasistatic process is represented by a dotted line between initial and final States. if the weights of small magnitude are removed one by one the Piston moves upward slowly up to the stops. At any instant of the upward motion of the Piston the system is in nearly Thermodynamic Equilibrium.
Thus The intermediate States between initial and final States will be in equilibrium. Such a process is quasi-static process.
