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Zeroth Law of Thermodynamics

Isn't the evo...

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Isn't the evolution of energy in an exothermic reaction a violation of the law of conservation of energy

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Q. In which of the following, law of conservation of energy is violated?

Q. Given below are the characteristics of two reactions A and B. A proceeds with the absorption of heat energy while B proceeds with the evolution of heat energy. Identify the correction statement(s) out of the following.
P. A is an endothermic reaction
Q. A is an exothermic reaction
R. B is an endothermic reaction
S. B is an exothermic reaction

Q. The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy?

Q. Illustrate the law of conservation of energy by discussing the energy changes which occur when we draw a pendulum bob to one side and allow it to oscillate. Why do the bob eventually come to rest? What happens to its energy eventually? Is it a violation of the law of conservation of energy?

Q. Question 15
Illustrate the law of conservation of energy by discussing the energy changes which occur when we draw a pendulum bob to one side and allow it to oscillate. Why do the bob eventually come to rest? What happens to its energy eventually? Is it a violation of the law of conservation of energy?

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