Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

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 kg–1 and 2491 kJ kg–1, respectively).

(log 273 = 2.436, log 373 = 2.572, log 383 = 2.583)

  1. A

    8.49 kJ kg–1 K–1 

  2. B

    7.90 kJ kg–1 K–1 

  3. C

    9.26 kJ kg–1 K–1

  4. D

    2.64 kJ kg–1 K–1

Solution

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