Which of the following processes is irreversible and leads to an increase in ent

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Question: Which of the following processes is irreversible and leads to an increase in entropy?

Options:

Correct Answer: Free expansion of gas

Solution:

Free expansion of gas is an irreversible process that leads to an increase in entropy as the gas expands into a vacuum.

Which of the following processes is irreversible and leads to an increase in entropy?

Which of the following processes is irreversible and leads to an increase in entropy?

Step 1: Understand what an irreversible process is. An irreversible process is one that cannot be reversed to return to the original state without external influence.
Step 2: Learn about entropy. Entropy is a measure of disorder or randomness in a system. An increase in entropy means the system becomes more disordered.
Step 3: Identify the process in question. The free expansion of gas is when gas expands into a vacuum without doing work or exchanging heat.
Step 4: Recognize that during free expansion, the gas molecules spread out and occupy a larger volume, leading to more disorder.
Step 5: Conclude that since the free expansion of gas cannot be reversed and results in greater disorder, it is an irreversible process that increases entropy.

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