Enthalpy & Internal Energy Numerical Problems | Thermodynamics Class 11 Chemistry

In this video, we dive deep into solving important numerical questions based on Enthalpy (Δ H) and Internal Energy (Δ E / Δ U) in Thermodynamics (1:05).Thermodynamics is a high-weightage topic for school exams, JEE, and NEET. Many students struggle with sign conventions, unit conversions (like calories to joules, or kilo-calories to calories), and finding \(\Delta n_g\) (1:27). This step-by-step tutorial will make calculating the heat of reaction at constant pressure and constant volume incredibly easy for you (0:00)!What you will learn in this video:The core relationship between Heat at Constant Pressure (\(q_p = \Delta H\)) and Heat at Constant Volume (\(q_v = \Delta E\)) (0:10).How to use the formula: \(\Delta H = \Delta E + \Delta n_gRT\) properly (1:49).How to calculate \(\Delta n_g\) by looking at gaseous products and reactants (2:50).Important unit conversions for the Gas Constant (R) values (8.314 J/K⋅mol, 2 cal/K⋅mol, etc.) (2:13).Step-by-step solutions to typical exam questions and combustion reactions (4:17). #Thermodynamics #Class11Chemistry #Enthalpy #InternalEnergy #ChemistryNumericals #JEEChemistry #NEETChemistry #PhysicalChemistry