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Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 4 (Q.No. 46)
Thermodynamics
46.
An open system is one in which
heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system
mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system
both the heat and work as well as mass of the working substance crosses the boundary of the system
neither the heat and work nor the mass of the working substance crosses the boundary of the system
Answer: Option
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