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Thermodynamics - Engineering

Q1:

An open system is one in which

A heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system

B mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system

C both the heat and work as well as mass of the working substance crosses the boundary of the system

D neither the heat and work nor the mass of the working substance crosses the boundary of the system

ANS:C - both the heat and work as well as mass of the working substance crosses the boundary of the system

Explanation: No answer description is available.