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JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry

स्थिर ताप \(37.0^{\circ} C\) पर एक आदर्श गैस के \(0.04\) मोल से भरा हुआ पिस्टन उत्क्रमणीय ढंग से \(50.0\, mL\) से \(375\, mL\) तक फैलता है। ऐसा होने में ऊष्मा का \(208\, J\) शोषित होता है। \(q\) और \(w\) के मान प्रक्रम के लिये होंगे : \((R=8.314 J / mol\, K )(\ln 7.5=2.01)\)

  1. A \(q = +208\,J, \,w =-208\,J\)
  2. B \(q =-208\,J, w =-208\,J\)
  3. C \(q =-208\,J, w = +208\,J\)
  4. D \(q = +208\,J, w = +208\,J\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(q = +208\,J, \,w =-208\,J\)

Step-by-step Solution

Detailed explanation

Solution:- As the heat is absorbed. \(\therefore q =+208 J\) Now for reversible isothermal process, \(q =- W\) \(\therefore W =- q =-208 J\) Hence the values of \(q\) and \(W\) for the process will be \(+208 J\) and \(-208 J\) respectively.
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