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Q. |
An open system is one in which |
A. | heat & work cross the boundary of the system, but the mass of the working substance does not |
B. | mass of working substance crosses the boundary of the system but the heat & work do not |
C. | both the heat & work as well as mass of the working substance cross the boundary of the system |
D. | neither the heat & work nor the mass of the working substances cross the boundary of the system |
Answer» C. both the heat & work as well as mass of the working substance cross the boundary of the system |
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