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Model Paper 1 — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 11 Mark
MCQ
In a closed system, which of the following take place?
  • A
    The boundaries permit the flow of matter into it but not vice versa.
  • B
    The boundaries permit the flow of matter into or out of it.
  • ✓
    The boundaries prevent the flow of matter into or out of it.
  • D
    The boundaries prevent the flow of matter out of it but not vice versa.
✓

Answer

Correct option: C.
The boundaries prevent the flow of matter into or out of it.
(c) The boundaries prevent the flow of matter into or out of it.
Explanation: In a closed system, there is no flow of matter from system to surrounding or vice versa. For example, a certain quantity of fluid bounded within a closed cylinder constitutes a closed system.

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