biology

Biologydiscussion2.docx

Biology

This discussion has 2 parts that should total 200 words in 2 paragraphs. In Part 1, answer the questions in paragraph form using about 100 words. In part 2, read the prompt and discuss your thoughts in an additional 100 words. Once you have submitted your initial post, return to read the posts of others. Choose one classmate to respond to using about 50 words. Make sure to address them by their first name and sign your response with your own first name.

Part 1:

1. Observe an ice cube or hold one in your hand. This is water in a solid form, so it has a high structural order. This means that the molecules cannot move very much and are in a fixed position. The temperature of the ice is zero degrees Celsius. As a result, the entropy of the system is low.

2. Allow the ice to melt at room temperature. What is the state of molecules in the liquid water now? How did the energy transfer take place? Is the entropy of the system higher or lower? Why?

3. If you were to heat the melted water to its boiling point, what would happen to the entropy of the system?

Part 2:

Think about the world around you. Give another everyday example of entropy and explain how it relates to increasing disorder of energy. If all energy tends to become more disordered, how do we always have a supply of usable energy?