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Which of the following transformations represent an increase in the entropy of the system.

Choose all that apply
26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K)
3 mol O2 (1.14 atm, 408K) ------>3 mol O2 (1.14 atm, 204K)
32 g Pb (liquid, 601.0K) ------>32 g Pb (solid, 601.0K)
26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K)
3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K)

Sagot :

mickymike92

The transformations that result in increase in entropy are those that result in increased disorderliness and they are:

  • 26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K)
  • 26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K)
  • 3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K)

What is entropy of a system?

The entropy of  a system is a measure of the degree of randomness or disorderliness of a system.

When a system changes from a more ordered state to a more disordered state, there is an increase in the entropy of the system.

Increase in temperature or volume also results in increase in entropy.

For example, when solid melts to form liquid, entropy increases. Also, when liquid changes to gas, entropy of the system increases.

Based on the above transformations:

  • 26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K) - entropy increases
  • 3 mol O2 (1.14 atm, 408K) ------>3 mol O2 (1.14 atm, 204K) - entropy decreases
  • 32 g Pb (liquid, 601.0K) ------>32 g Pb (solid, 601.0K) - entropy decreases
  • 26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K) - entropy increases
  • 3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K) - entropy increases

In conclusion, an increase in disorderliness of a system results in entropy increase.

Learn more about entropy at: https://brainly.com/question/21578229

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