jee_main_2026_24_january_evening - Thermodynamics Topics

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QUESTION #43 Isochoric Process and Heat Transfer
10 mole of an ideal gas is undergoing the process shown in the figure. The heat involved in the process from P₁ to P₂ is α Joule ( P₁ = 21.7Pa and P₂ = 30Pa , Cv = 21J / K.mol , R = 8.3J / mol.K ). The value of α is ____. {{IMG1}}
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QUESTION #46 Specific Heat of Gases
When 300 J of heat given to an ideal gas with Cₚ=(7)/(2)R its temperature raises from 20 °C to 50 °C keeping its volume constant. The mass of the gas is (approximately) ____ g. (R = 8.314 J/mol.K).
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QUESTION #67 Enthalpy of Atomization and Bond Enthalpy
The heat of atomisation of methane and ethane are 'x' kJ mol ⁻¹ and 'y' kJ mol ⁻¹ respectively. The longest wavelength ( λ ) of light capable of breaking the C-C bond can be expressed in SI unit as:
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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