A system can said to be in thermodynamic equilibrium if
mass of system does not change with time
pressure of system does not change with time
macroscopic variable ( Pressure, volume temperature mass and composition) that characterise the system do not change with time
none of these
As we learnt
Thermodynamics Equilibarium -
When Thermodynamics variables attains a steady state i,e, they are independent of time.
- wherein
e.g. P, V, T become independent of time.
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