Which of the following statements concerning real gases is/are CORRECT?
1)Real gases are always liquids or solids at temperatures below 273.15 K.
2)The pressure of a real gas is higher than predicted by the ideal gas law.
3)The molecules in a real gas are attracted to each other.
A) 1 only
B) 2 only
C) 3 only
D) 2 and 3
E) 1,2 and 3

Question

Quizplus · Accepted Answer

Real gases deviate from ideal behavior due to intermolecular forces, which include attractions between molecules. Statement 3 is correct. Statement 1 is incorrect because real gases can exist as gases below 273.15 K, depending on the substance and pressure. Statement 2 is incorrect because the pressure of a real gas is often lower than predicted by the ideal gas law due to these intermolecular attractions.

Which of the Following Statements Concerning Real Gases Is/are CORRECT