Which of the following statements is correct?

Question

Quizplus · Accepted Answer

This is a correct statement according to the first law of thermodynamics. When an ideal gas expands against a constant external pressure, it does work on the surroundings and loses energy, which results in a decrease in the internal energy of the gas. Option A is incorrect because the internal energy increases when heat is added, not work. Option B is incorrect because work done on the system adds energy to the system and increases the internal energy, not decrease it. Option D is incorrect because only option C is correct. Therefore, option E is also incorrect as all statements are not false.

Which of the Following Statements Is Correct