Chemistry · Thermochemistry
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The law of conservation of energy is also called:
- A
Second law of Thermodynamics
- B
First law of Thermodynamics
- C
3rd law of Thermodynamics
- D
None of the above
Explanation: The first law of thermodynamics states that “ Energy can neither be created nor destroyed OR the total energy of the system and surrounding remains constant.”
The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time.
The third law of thermodynamics states, “The entropy of a system approaches a constant value when its temperature approaches absolute zero.”
Therefore , THe law of conservation of energy is also called the first law of thermodynamics
a) Second law of Thermodynamics: This option is not correct. The second law of thermodynamics relates to the concept of entropy and the direction of energy flow in natural processes. It states that in any energy exchange, if no energy enters or leaves the system, the potential energy of the state will always be less than that of the initial state. It does not directly refer to the conservation of energy.
Explanation: The first law of thermodynamics states that “ Energy can neither be created nor destroyed OR the total energy of the system and surrounding remains constant.”
c) 3rd law of Thermodynamics: This option is not correct. The third law of thermodynamics relates to the behavior of systems as they approach absolute zero temperature. It does not specifically refer to the conservation of energy.
d) None of the above: This option is not correct. The correct answer is option b, which is the first law of thermodynamics, also known as the law of conservation of energy.
Tagged under Chemistry · Thermochemistry · 2000