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An isolated system is one in which | |
A. | mass does not cross boundaries of the system, though energy may do so [Wrong Answer] |
B. | neither mass nor energy crosses the boundaries of the system [Correct Answer] |
C. | both energy and mass cross the boundaries of the system [Wrong Answer] |
D. | mass crosses the boundary but not the energy [Wrong Answer] |
E. | thermodynamic reactions do not occur. [Wrong Answer] |