Which statement pertaining to the three basic systems is true?
A) The internal energy of an isolated system is mostly conserved.
B) Open systems can exchange matter with other open systems.
C) Open systems can exchange matter with a closed system.
D) The internal energy of an open system is always constant.
E) A closed system can accept heat from an isolated system.

Question

Quizplus · Accepted Answer

An open system can exchange matter and energy with its surroundings.

Answer: A
 An isolated system does not exchange matter or energy with its surroundings, therefore its internal energy is mostly conserved.

Answer: E
 A closed system can exchange energy (heat or work) with its surroundings, but not matter. Therefore it can accept heat from an isolated system.

D is incorrect because the internal energy of an open system can change depending on the exchange of energy and matter with its surroundings. C is incorrect because a closed system cannot exchange matter with other systems, only energy.

Which Statement Pertaining to the Three Basic Systems Is True