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Thermodynamics question

2019 · 9 Jan · Shift 2 · Q23
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Thermodynamics question

2019 · 9 Jan · Shift 2 · Q23

JEE MainChemistryThermodynamicsMCQ+4 / −1
The entropy change associated with the conversion of 1 kg of ice at 273 K to water vapours at 383 K is : (Specific heat of water liquid and water vapour are 4.2 kJ K −-− 1 kg −-− 1 and 2.0 kJ K −-− 1 kg −-− 1; heat of liquid fusion and vapourisation of water are 334 kJ −-− 1 and 2491 kJ kg −-− 1, respectively). (log 273 = 2.436, log 373 = 2.572, log 383 = 2.583)
  1. A
    7.90 kJ kg −-− 1 K −-− 1
  2. B
    2.64 kJ kg −-− 1 K −-− 1
  3. C
    8.49 kJ kg −-− 1 K −-− 1
  4. D
    9.26 kJ kg −-− 1 K −-− 1
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