Short trick: degrees of freedom, Cv, Cp and γ in 10 seconds
By Kumar Sir, Physics faculty at Pramana Institute (IIT Kanpur, 25 years teaching, ex-Allen) Every year, JEE Main and NEET ask at least one question that needs Cv, Cp or γ for a gas. Most students memorise a table of values, then panic when the question mixes two gases or says "linear triatomic". If you […]