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Q. In the figure below, two systems $A$ and $B$ are separated by an insulating fixed wall (adiabatic wall) and also insulated from surroundings by insulated wall.
image
Choose the correct option regarding above information.

Thermodynamics

Solution:

Adiabatic or insulating walls do not allow flow of energy (heat) from one system to another, so no heat exchanges between systems $A$ and $B$.
Thus, the thermodynamic states (pressure and temperature) of $A$ and $B$ will not change with time. It means both the systems will be in thermal equilibrium separately.