Moderate

Real gases approach ideal behaviour at___________________?

Correct answer: B. Low pressure & high temperature

  • A. High pressure & high temperature
  • B. Low pressure & high temperature
  • C. High pressure & low temperature
  • D. Low pressure & low temperature

Explanation

At low pressure, molecules are far apart and intermolecular forces contribute little to the behaviour; high temperature also reduces the relative effect of attraction. Hence real gases most closely approach ideal behaviour at low pressure and high temperature.

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