Question: Two ideal gas systems undergo reversible expansion under different conditions starting from the same P and V. At the end of the expansion, the two

Two ideal gas systems undergo reversible expansion under different conditions starting from the same P and V. At the end of the expansion, the two systems have the same volume. The pressure in the system that has undergone adiabatic expansion is lower than in the system that has undergone isothermal expansion. Explain this result without using equations.

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