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What happens to the change in internal energy of the gas when the stopcock between cylinders A and B, both of equal capacity, is suddenly opened while A contains a gas at standard temperature and pressure, and B is completely evacuated, with the entire system thermally insulated?

Options

  1. AThe internal energy increases.
  2. BThe internal energy decreases.
  3. CThe internal energy remains constant.
  4. DThe internal energy fluctuates.

Correct answer

C. The internal energy remains constant.

Step-by-step solution

Correct Option is : (C) The internal energy remains constant.

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