Total amount of energy in the universe- Thermodynamics

Q.  Total amount of energy in the universe is
- Published on 21 Aug 15

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

ANSWER: constant
 
The first law of thermodynamics states that the energy can neither be created nor be destroyed. It can only get transformed from one form to another form. The universe consists of the system as well as the surrounding together. Energy can only be transferred from system to surrounding or surrounding to system in various forms, but it can never be destroyed or created. Thus the total amount of energy in the universe is constant. We cannot produce a device which can supply mechanical work without consuming any energy.

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