Question

An isolated system is that system in which:

• A. there is no exchange of energy with the surroundings
• B. there is exchange of mass and energy with the surroundings
• C. there is no exchange of energy and mass with the surroundings
• D. there is exchange of energy and mass with the surroundings

Answer 1

The correct option is C there is no exchange of energy and mass with the surroundings

An isolated system is a thermodynamic system that cannot exchange either energy or matter (mass) outside the boundaries of the system. An isolated system differs from a closed system by the transfer of energy. Closed systems are only closed to matter, energy can be exchanged across the system's boundaries.
Hence, correct answer is option C.