Rotary lime kiln is an example of a/an _____________ system?
Correct answer: B. Open
- A. Closed
- B. Open
- C. Isolated
- D. Non-thermodynamic
Explanation
A rotary lime kiln continuously receives limestone and fuel and discharges solids and gases, so mass crosses its boundary. It is therefore an open system, although it may be treated as steady-flow equipment.
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