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When we put cards together in a deck or put bricks together to build a house, for example, we increase the order in the physical world. Does this violate the second law of thermodynamic? Explain.

When we put cards together in a deck or put bricks together to build a house, for example, we increase the order in the physical world. Does this violate the second law of thermodynamic? Explain.

Grade:11

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago
No, this does not violate the second law of thermodynamics.
Energy is a conserved quantity, while entropy is a quantity that can and generally does increase. Entropy is often associated with disorder and the second law of thermodynamics is sometimes cast as a statement that the disorder of a closed system always increases.
When you put bricks together to build a house, the energy spent to make the bricks is greater than to build the house by using that bricks. Thus, the energy spent to order the system is less than to disorder the system. Therefore the total entropy of the system will increase. This signifies that, the increase in disorder, since entropy measures the total disorder of the system. That is why it does not violate the second law of thermodynamics

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