A piston in a cylinder is a part of:
Correct answer: B. Surroundings
- A. System
- B. Surroundings
- C. Boundary
- D. None of these options are correct
Explanation
The substance within the cylinder is the system and cylinder itself, piston and everything outside the cylinder is a part of the surrounding.
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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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