Energy of an isolated system - Thermodynamics

Q.  The energy of an isolated system
- Published on 19 Aug 15

a. is always decreasing
b. is always constant
c. is always increasing
d. none of the above

ANSWER: is always constant
 
The system in which both the mass as well as energy cannot be transferred between system and its surrounding is called as isolated system. As the energy can neither be transmitted nor be absorbed, the total energy of an isolated system is always constant.

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