<span>The normal conditions of helium is 300 k and 1 atm. The conditions that deviate from the ideal behavior do not follow the ideal gas law equation PV = nRT. Among these conditions, the one that did not abide to the ideal gas equation is </span><span>b. 300 K and 2 atm with the deviation on the pressure.</span>
"300 K and 2 atm" is the condition among the conditions given in the question that you can <span>expect helium gas to deviate most from ideal behavior. The correct option among all the options that are given in the question is the second option or option "b". I hope the answer has helped you.</span>
