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Ice at –5°C is heated to become vapor with temperature of 110°C at atmospheric pressure. The entropy change associated with this process can be obtained from :

1. 373 H 273 H dT C boiling melting K 383 K 268 p Δ + Δ + ∫
2. b on vaporisati , m f m K 273 K 268 m , p T H T fusion , H dT T C Δ + Δ + ∫ + ∫ ∫ + K 383 K 373 m , p K 373 K 273 m , p T dT C T dT C
3. T q dT C rev K 383 K 268 p + ∫
4. b on vaporisati , m f m K 273 K 268 m , p T H T fusion , H dT T C Δ + Δ + ∫ + ∫ ∫ + K 383 K 373 m , p K 373 K 273 m , p dT C dT C CAREER POINT CAREER POINT Ltd., CP Tower, IPIA, Road No.1, Kota (Raj.), Ph: 081-47250011 www.careerpoint.ac.in 29 JEE Main Online Paper

Correct answer: b on vaporisati , m f m K 273 K 268 m , p T H T fusion , H dT T C Δ + Δ + ∫ + ∫ ∫ + K 383 K 373 m , p K 373 K 273 m , p T dT C T dT C

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