Skip to main content
We’re so back. See what’s new for the 2026-2027 school year →
The new Teacher Workspace is here. Your first 3 assignments are free. Try it →

🧪ap chemistry review

Universal Gas Constant (R) in AP Chemistry

Written by the Fiveable Content Team
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team

Definition

The universal gas constant (R) is an important value used in many equations in thermodynamics including the ideal gas law. Its value depends on the units used but often approximated as 8.314 J/(mol·K).

AP course connection

Topic 3.4: 3.4 Ideal Gas Law

Unit 3

Keep studying

Review this concept in 3.4 Ideal Gas LawAP Chemistry course hub

Universal Gas Constant (R) cheat sheet for homework

visual study aid

"Universal Gas Constant (R)" also found in:

Subjects (1)

Keep studying AP Chemistry

Connect this key term to the AP exam workflow: review the course, practice questions, and check related study tools.

AP Chemistry hub

Review units, study guides, and course resources.

AP-style practice

Check this vocabulary in multiple-choice context.

FRQ practice

Apply key concepts in written AP responses.

Score calculator

Estimate the exam score you are working toward.

Cheatsheets

Review the highest-yield facts before practice.

Practice exam

Put the full course together before test day.