Question

Human body is an example of:

• A. open system
• B. closed system
• C. isolated system
• D. none of these

Answer 1

Answer: (A)

(i) Open system: Heat and matter both are exchanged between system and surrounding.
(ii) Closed system: Only heat is exchanged between, system and surroundings.
(iii) Isolated system: Neither heat nor matter is exchanged between system and surroundings.
Human body is an example of open system because it can exchange both heat and matter with its surroundings.