GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -In physics, the law of conservation of energy states that the total energy of an isolated system remains constant-it is said to be conserved over time. Energy can neither be created nor destroyed; rather, it transforms from one form to another.
Detailed explanation-2: -1st Law of Thermodynamics-Energy cannot be created or destroyed. 2nd Law of Thermodynamics-For a spontaneous process, the entropy of the universe increases. 3rd Law of Thermodynamics-A perfect crystal at zero Kelvin has zero entropy.
Detailed explanation-3: -Einstein said, “Energy cannot be created or destroyed, it can only be changed from one form to another". This first law of thermodynamics which also known as Law of Conservation of Energy works in all sphere of life. Several times, we put our hard work and there are no immediate positive results.
Detailed explanation-4: -Thermodynamics-the theory of energy. Thermodynamics is the study of energy change accompanying physical and chemical changes. In chemical systems, these changes are described through the ideas of heat and work, enthalpy, entropy, and Gibbs free energy.