ગેસ \(PV = nRT + \alpha V\) સમીકરણ પ્રમાણે વર્તે છે જ્યાં \(n\) એ મોલની સંખ્યા અને \(\alpha \) ધન અચળાંક છે. એક મોલ વાયુ માટે શરૂઆતનું તાપમાન અને દબાણ અનુક્રમે \(T_o\) અને \(P_o\) છે.વાયુનું તાપમાન સમોષ્મી રીતે બમણું કરવા કેટલુ કાર્ય કરવું પડે?

A \(\frac{{{P_0}{T_0}R}}{{{P_0} - \alpha }}\)
B \(\frac{{{P_0}{T_0}R}}{{{P_0} + \alpha }}\)
C \({P_0}{T_0}R\,\ln \,2\)
D \({{P_0}{T_0}R}\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{{{P_0}{T_0}R}}{{{P_0} - \alpha }}\)

Step-by-step Solution

Detailed explanation

\({P_0}{V_0} = nR{T_0}\) \({P_0}V = NRT\) \({T_f} = 2{T_0}\) \(W = \int {PdV} \) \( = \int {\left( {\frac{{nRT}}{V} + \alpha } \right)dV} \) \(PV = nRT + \alpha V\) \(\int {PdV = \int\limits_{{T_0}}^{2{T_0}} {nRdT + \int\limits_{{V_1}}^{{V_1}} {\alpha dV} } } \)…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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