Under which of the following two conditions applied together, a gas deviates most from the ideal behaviour?
(i) Low pressure
(ii) High pressure
(iii) Low temperature
(iv) High temperature
The answer is the option (ii) High pressure, (iii) Low temperature
Explanation: =Gases deviate from PV=nRT under high pressure and low temperature, these are real gases, and it deviates from ideal behaviour.