GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The first law of thermodynamics states that energy can neither be created nor destroyed.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The first law of thermodynamics states that energy can neither be created nor destroyed, only altered in form. For any system, energy transfer is associated with mass crossing the control boundary, external work, or heat transfer across the boundary. These produce a change of stored energy within the control volume.

Detailed explanation-2: -First law of thermodynamics states that total energy of an isolated system is constant, energy can neither be created nor be destroyed but can be transformed from one form to another.

Detailed explanation-3: -Energy can neither be created nor destroyed i.e. the total energy of the universe remains constant; however, it transforms from one form to another. The same phenomena apply when we burn a candle, chemical energy of wax is converted to light energy and heat energy.

Detailed explanation-4: -First laws of thermodynamics states that total energy of an isolated system is constant and energy can neither be created nor be destroyed but can be transformed from one form to another.

Detailed explanation-5: -Limitations of the first law of thermodynamics: The limitation of the first law of thermodynamics is that it does not say anything about the direction of the flow of heat. It does not say anything whether the process is a spontaneous process or not.

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