A gas is said to behave like an ideal gas when relation PV/T= Constant. When do you expect a real gas to behave like ideal gas?

Answer: When the temperature is high and pressure is low
Explanation
  • A real gas behaves like an ideal gas at high temperature (molecules have enough kinetic energy to overcome intermolecular forces) and low pressure (molecules are far apart, reducing interactions).
  • Under these conditions, the gas follows the ideal gas equation PV=nRTPV = nRT.
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