Return to Blog Homepage

MCAT Chemistry Question — Gas

The behavior of gas will deviate from ideal behaviors LEAST under which of the following sets of conditions:


  1. A gas at high pressure and temperature
  2. A gas at low pressure and temperature
  3. A gas at high pressure and low temperature
  4. A gas at low pressure and high temperature
Click for Explanation

The ideal gas law, PV=nRT, is based on two assumptions: 1) individual molecular volume is negligible, and 2) intermolecular forces do not exist. A real gas at high temperature and low-pressure conditions, best approximates these two assumptions, and thus the ideal gas law. Therefore, answer choice D is the correct answer.

Want more MCAT practice?

We’ve got options for every schedule and learning style!

From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!

Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.

Create your Free Account to access our MCAT Flashcards SIGN UP NOW