Which of the following is true for the process 1 – 5 on temperature entropy plot?
तापमान एन्ट्रापी प्लॉट पर प्रक्रिया 1 - 5 के लिए निम्नलिखित में से कौन सा सत्य है?
For
process 1 – 5, it is isentropic
process (Entropy = Constant). So
it will be reversible adiabatic
i.e, 
Hence, the correct option is (A).
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