The change in chemical potential (in J) of one mole of an ideal gas, when it is compressed isothermally at 300 K from 1.0 atm to 2.0 atm, is closest to

(In 2 = 0.69)

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CSIR-UGC (NET) Chemical Science: Held on (26 Nov 2020)
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  1. 1225
  2. 1725
  3. 2425
  4. 2725

Answer (Detailed Solution Below)

Option 2 : 1725
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10 Qs. 20 Marks 15 Mins

Detailed Solution

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Concept:

  • Increase of G per mole of component (i) when an infinitesimal of it, is added to the system, keeping T, P, and all other components fixed. Chemical potential is an intensive property.
  • The chemical potential is given by,

  • The change in chemical potential (), when the pressure of an ideal gas is changed from 1 atm to P atm at constant temperature is given by,

 

Explanation:

  • When one mole of an ideal gas, is compressed isothermally at 300 K from 1.0 atm to 2.0 atm, the change in chemical potential is

​ 

  • Thus, the change in chemical potential (in J) is closest to 1725 J

Conclusion:-

Hence, the change in chemical potential (in J) of one mole of an ideal gas, when it is compressed isothermally at 300 K from 1.0 atm to 2.0 atm, is closest to 1725 J

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