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Question #80797

Mechanical Engineering

An open system is one in which____________________?

Options:

A) mass does not cross boundaries of the system, though energy may do so

B) neither mass nor energy crosses the boundaries of the system

C) both energy and mass cross the boundaries of the system

D) mass crosses the boundary but not the energy

E) E. thermodynamic reactions do not occur

Answer: An open system is one in which both energy and mass cross the boundaries of the system.

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