WBCS.LIVE practice question

Under critical temperature, on compressing gases turn to liquid, because

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. molecules are of finite size.
  2. molecules have random motion.
  3. molecules have intermolecular forces.
  4. molecules are spherical.

Correct answer and explanation

Correct answer: molecules have intermolecular forces.

Explanation: āœ… Correct Answer: C) molecules have intermolecular forces. šŸ“š Explanation: Real gases deviate from ideal behavior because their molecules exert attractive forces on each other. When a gas is cooled below its critical temperature, these intermolecular forces become strong enough to hold the molecules together. As the gas is compressed, the molecules are pushed closer, allowing these attractive forces to overcome their kinetic energy. This process causes the gas to transition into a liquid state.