States of Matter · JEE Main previous year questions

2017 1 question

1. Q612017 · 9 Apr 2017 · Shift 1

   An ideal gas undergoes isothermal expansion at constant pressure. During the process :

   1. A.enthalpy increases but entropy decreases.
   2. B.enthalpy remains constant but entropy increases.
   3. C.enthalpy decreases but entropy increases.
   4. D.Both enthalpy and entropy remain constant.
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   Answer: B