There are two types of systems that were discussed in this unit: an open system and a closed system. Which is the best description of the two systems from the answers below?

Question

Question 4 options:

An open system is where only energy can enter and leave the system. A closed system is where energy can only leave the system.

An open system is where only mass can enter and leave the system. A closed system is where mass can only leave the system.

An open system is where mass and energy can enter or leave the system. A closed system is where energy can enter and leave but mass cannot.

An open system is where energy can enter and leave the system, but mass cannot. A closed system is where mass can enter and leave but energy cannot.

Answer 1

The best description of the two systems is:

An open system is where mass and energy can enter or leave the system. A closed system is where energy can enter and leave but mass cannot.

This definition aptly captures the essential characteristics of open and closed systems in thermodynamics. Open systems allow for the transfer of both mass and energy, while closed systems permit energy transfer but not mass transfer.