jee_main_2025_28_jan_evening - Thermodynamics Topics

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QUESTION #0 First Law of Thermodynamics and State Functions
An ideal gas undergoes a cyclic transformation starting from the point A and coming back to the same point by tracing the path A→ B→ C arrow Darrow A as shown in the three cases below. Choose the correct option regarding Δ U: {{IMG1}}
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QUESTION #47 Hess's Law / Enthalpy of Formation
Consider the following data: Heat of formation of CO₂(g) = -393.5 ~kJ~mol⁻¹ Heat of formation of H₂O(l) = -286.0 ~kJ~mol⁻¹ Heat of combustion of benzene = -3267.0 ~kJ~mol⁻¹ The heat of formation of benzene 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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