Chemistry Regent Exam August 2022
20. Under which conditions of temperature and pressure does a sample of propane behave least like an ideal gas?
(1) 250. K and 1.0 atm
(2) 250. K and 5.0 atm (3) 500. K and 1.0 atm
(4) 500. K and 5.0 atm
Explanation: A sample of gas behaves MOST like an ideal gas under high temperature and low pressure. The question is asking us for conditions for gas to behave LEAST like an ideal gas which would be low temperature and high pressure.
Answer: 2
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