CIVENG 2B04 Lecture 10: 2B04 Lecture 10 - Energy Flows & Balances.pdf

Choose the correct statement that supports the second law of thermodynamics.

1. The second law of thermodynamics is a principle that demonstrates the conservation of energy

2. The second law states that energy always degrades quality-wise

3. According to this, the entropy of an isolated system may decrease or increase

4. This law states that the flow of energy can take place in any direction naturally

Read the statements given below and determine which of the following statements violates the first law of thermodynamics?

1. It is possible to extract unlimited work from a machine without any source of energy.

2. The energy in a system always remains conserve

3. The entropy of the universe can never decrease

4. None of these

Which law of thermodynamics states that energy is conserved in all chemical processes?