Quick Check 5.1 Solved | Gases Compressibility, Joule-Thomson Effect & Molar Mass Calculation

🔥 QUICK CHECK 5.1 COMPLETELY SOLVED | STATES OF MATTER | CLASS 11 CHEMISTRY 🔥 In this video, I solve ALL THREE questions from Quick Check 5.1 of the "States and Phases of Matter" chapter (based on Kinetic Molecular Theory & Ideal Gas Equation). 0:00 Introduction 0:15 Q(a) Why can gases be compressed easily? 2:20 Q(b) What is the Joule-Thomson effect? 6:03 Q(c) Numerical: Find relative molecular mass 📌 QUESTIONS COVERED: ✅ a) Explain why gases can be compressed easily? ✅ b) What is the Joule-Thomson effect? ✅ c) The volume of 84g of a gas is 8 dm³ at -90 °C under 7 atm pressure. Calculate the relative molecular mass of the gas. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ WHAT YOU WILL LEARN: ✔️ Kinetic Molecular Theory explanation for gas compressibility ✔️ Joule-Thomson effect – cooling during sudden expansion (real-life examples) ✔️ Step-by-step numerical solution using PV = nRT ✔️ How to convert Celsius to Kelvin (common mistake alert!) ✔️ Using the formula Mᵣ = mRT / PV ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 FORMULA USED IN PART (c): Ideal Gas Equation: PV = nRT Rearranged for Molar Mass: Mᵣ = (m × R × T) / (P × V) Where: m = mass of gas (84 g) R = 0.0821 atm·dm³·K⁻¹·mol⁻¹ T = temperature in Kelvin (-90°C + 273 = 183 K) P = pressure (7 atm) V = volume (8 dm³) ✅ ANSWER: Mᵣ = 22.5 g/mol ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 Quick check 5.1 chemistry new book class 11 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💬 COMMENT BELOW: Which question was hardest for you? (a), (b), or (c)? 👍 LIKE if this helped you understand Quick Check 5.1! 🔔 SUBSCRIBE for more chapter-wise quick check solutions. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ #QuickCheck5_1 #IdealGasLaw #StatesOfMatter #Class11Chemistry #JouleThomsonEffect #PVnRT #MolecularMass #ChemistryNumericals #GasLaws #KineticMolecularTheory #ChemistrySolved #BoardExamPrep #NCERTSolutions #ChemistryTutorial ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━