तापमान Tऔर T2 पर स्थिर ऊष्मा क्षमता वाले दो समरूप सीमित निकाय ऊष्मा इंजन में कार्य करने के लिए उपलब्ध हैं। तो अधिकतम कार्य के वितरण पर निकायों द्वारा प्राप्त अंतिम तापमान Tf क्या है?

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  1. Tf = T1­ = T2

Answer (Detailed Solution Below)

Option 2 :
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ST 1: UPSC ESE (IES) Civil - Building Materials
20 Qs. 40 Marks 24 Mins

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वर्णन:

माना कि T1 > T2

Q1 = cp (T1 - TF)

Q2 = cp (TF – T2)

∴ W = Q1 – Q2 = cp (T1 + T2 – 2TF)

 ‘w’ के अधिकतम होने के लिए, TF  को न्यूनतम होना चाहिए।

चूँकि,

अब, 

TF के न्यूनतम होने के लिए 

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