Answer:
Conditions which results in deviating a gas from ideal behavior are;
i) Low Temperature
ii) High Pressure
Step-by-step explanation:
Ideal gases are assumed as those gases which follow ideal gas equation i.e. P V = n R T as according to this equation the gas particles contained in any confined place don't interact with each other hence, zero interactions are present among the particles.
But, as the temperature is decreased, the kinetic energy i.e. velocity of gas particles also decreases therefore, resulting in the formation of interactions along with deviation from ideal behavior.
Sidewise, with increases in pressure the volume occupied by gas particles also decreases and the distances between particles also lowers bringing the particles close together resulting the formation of interactions and resulting in deviation from ideal behavior.
Conclusion:
So, it can be concluded that gases behave ideally at high temperature and low pressure and deviate from ideal behavior at low temperature and high pressure respectively.