jee_main_2026_22_january_evening - Thermodynamics Topics

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QUESTION #50 Ideal Gas Law and Gas Compression
An insulated cylinder of volume 60 ~cm³ is filled with a gas at 27^ and 2 atmospheric pressure. Then the gas is compressed making the final volume as 20 ~cm³ while allowing the temperature to rise to 77^. The final pressure is ____ atmospheric pressure.
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QUESTION #72 Born-Haber Cycle and Lattice Enthalpy
If the enthalpy of sublimation of Li is 155 kJ mol⁻¹, enthalpy of dissociation of F₂ is 150 kJ mol⁻¹, ionization enthalpy of Li is 520 kJ mol⁻¹, electron gain enthalpy of F is -313 kJ mol⁻¹, standard enthalpy of formation of LiF is -594 kJ mol⁻¹. The magnitude of lattice enthalpy of LiF is ____ kJ mol⁻¹ (Nearest integer).
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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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