Check the truth of both statements in second law of thermodynamics.
Answers
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 second law also states that the changes in the entropy in the universe can never be negative
As was already stated above, the first law of thermodynamics characterises quantitatively the processes of conversion of energy. The second law of thermodynamics characterises the qualitative side of these processes. The first law provides all that is necessary to compose the energy balance of a process. However, it gives no indications whether this or another process is feasible. Meanwhile, by far not all processes can be practically realized.
It should be stressed that the second law of thermodynamics, as well as the first, is based on experience.