Which of the following is the second law of thermodynamics?
A) In a spontaneous process,the entropy of the universe increases.
B) There is no disorder in a perfect crystal at 0 K.
C) The total energy of the universe is always increasing.
D) The total energy of the universe is constant.
E) Mass and energy are conserved in all chemical reactions.

Question

Quizplus · Accepted Answer

The second law of thermodynamics states that in a spontaneous process, the entropy of the universe always increases. Entropy is a measure of the disorder or randomness of a system, and the second law tells us that the total amount of disorder or randomness in the universe is always increasing. Choice B is not a statement of the second law and refers to a specific scenario of a perfect crystal at 0 K, which is not representative of most systems. Choice C is not true since energy can be converted from one form to another, but it cannot be created or destroyed. Choice D is a statement of the first law of thermodynamics and not the second law. Choice E refers to the conservation of mass and energy, which is also not a statement of the second law.

Which of the Following Is the Second Law of Thermodynamics