Total moles: P₁V₁ + P₂V₂ = (2×10) + (3×15) = 20 + 45 = 65.

Sun, 03 May 2026 15:16:50 +0000

Understanding Total Moles in Gas Laws: A Simple Breakdown of P₁V₁ + P₂V₂ = n Total When studying gas laws, one fundamental concept you’ll encounter is the total amount of moles of gas, often calculated using the equation: P₁V₁ + P₂V₂ = n total. This formula sounds technical, but it’s a powerful tool for understanding how gases behave under varying pressures and volumes. In this article, we’ll unravel what total moles mean and step through a clear example: (2×10) + (3×15) = 20 + 45 = 65, showing how this calculation connects to real gas behavior. --- ### What Are Moles in Gases?