Question

Which of the following is an example of a closed system?

• A. a cup of tea
• B. an air-tight container
• C. a jug of water
• D. all of the above

Answer 1

Answer: (B)

an air-tight container

$Answer:-$ B

In thermodynamics, a closed system can exchange energy (as heat or work) but not matter, with its surroundings. An isolated system cannot exchange any heat, work, or matter with the surroundings, while an open system can exchange energy and matter.

In air tight container exchange of matter is not possible only energy can be transferred so it is closed system.

but cup of tea and jug of water are open system.