Ideal Gas Equation Explained: PV = nRT, Units, Forms, and JEE Tips [2025 Guide]

π Ideal Gas Equation: A Complete Guide for JEE & NEET Aspirants The Ideal Gas Equation , one of the most essential and frequently used equations in physics and chemistry, connects pressure , volume , temperature , and moles of gas into one compact relationship: π The Equation: PV = nRT Where: P = Pressure V = Volume n = Number of moles R = Universal gas constant T = Temperature (in Kelvin) Let’s dive deep into this equation, understand each part, know when to use which form, and crack tricky numerical problems easily in JEE, NEET, NDA, or Class 11-12 Boards . π Understanding Each Term in PV = nRT ✅ P — Pressure Unit: atm or Pascal (Pa) 1 atm = 1.013 × 10⁵ Pa Represents the force gas molecules exert on the container walls. ✅ V — Volume Unit: Litres (L) or cubic meters (m³) 1 L = 10⁻³ m³ The space occupied by gas. ✅ n — Number of Moles n = mass / molar mass Represents how many moles (or molecules) of gas are presen...