Consider the given statements regarding the behavior of ideal gases: 1. Ideal gas molecules have negligible volume compared to the total volume of the container. Which of the statements given above is/are correct?
2. There are strong intermolecular attractive forces between ideal gas molecules.
3. Collisions between ideal gas molecules are perfectly elastic.
1 and 3 only
Statement 1: Correct. One of the key assumptions of ideal gas theory is that molecules are point masses with negligible volume relative to the container.
Statement 2: Incorrect. Ideal gas molecules are assumed to have no intermolecular forces (neither attractive nor repulsive) between them — this is a fundamental postulate of the ideal gas model.
Statement 3: Correct. Collisions between ideal gas molecules (and between molecules and container walls) are assumed to be perfectly elastic — kinetic energy is conserved.
Hence, 1 and 3 only are correct.
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