At which temperature and pressure will a sample of a real gas behave most like an ideal gas?

Regents Chemistry Exam June 2025 Question 37

37. At which temperature and pressure will a sample of a real gas behave most like an ideal gas?

(1) 250. K and 100. atm

(2) 500. K and 10. atm

(3) 750. K and 1 atm

(4) 1000. K and 0.1 atm

Solution:

Real gases behave most like ideal gases at high temperature and low pressure. Choice 4 is the correct answer because it has the highest temperature of 1000k and the lowest pressure of 0.1atm.

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