Asked in PMC Practice Test 11 (2021) 2021Moderate

Anything under test or observation in laboratory is called _.

Correct answer: B. System

  • A. Surrounding
  • B. System
  • C. Confined space
  • D. None of these options are correct

Explanation

In chemistry, the term "surroundings" refers to everything outside of the system being studied. In chemistry, a system refers to a part of the universe that is being studied or observed. It can be a physical, chemical, or biological system that is subject to certain conditions or changes. In general, a confined space is an enclosed or partially enclosed space that is not designed for continuous human occupancy and has limited or restricted means of entry or exit. Incorrect option

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About System, Surroundings and State Functions

A system is the part of the universe under study, while everything outside it is the surroundings; the boundary separates them. State functions such as pressure, temperature, volume, internal energy and enthalpy depend only on the state, unlike heat and work, which depend on the path taken.

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