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Chemistry · THERMODYNAMICS

हिन्दी

Refer to the given figure showing three types of thermodynamic systems (a), (b), and (c). Which of the following statements correctly identifies the boundaries and exchanges?

  1. System (a) is an open system exchanging both matter and energy; System (b) is a closed system with conducting walls allowing only energy exchange; System (c) is an isolated system allowing neither matter nor energy exchange.
  2. System (a) permits transfer of matter and energy; System (b) has a thermally insulating boundary preventing all energy transfer; System (c) permits energy exchange but prevents matter exchange.
  3. System (b) is an isolated system with a rigid adiabatic wall, whereas System (c) is a closed system with diathermic walls.
  4. Both System (b) and System (c) allow matter exchange, but System (a) restricts it via a permeable membrane.

Correct answer · Option 1

System (a) is an open system exchanging both matter and energy; System (b) is a closed system with conducting walls allowing only energy exchange; System (c) is an isolated system allowing neither matter nor energy exchange.

Explanation

Fig. 5.2 clearly illustrates: (a) Open system (matter and energy transfer), (b) Closed system (only energy transfer), and (c) Isolated system (neither matter nor energy transfer).
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