आरेख में किसी उत्क्रमणीय इंजन चक्र का ताप - एन्ट्रॉपी आरेख दर्शाया गया है | इसकी दक्षता है -

Options

A. `1/2`
B. `1/2`
C. `2/3`
D. `1/3`

Answer

d

Explanation

`Q_(1)=T_(0)S_(0)+1/2+T_(0)S_(0)=3/2T_(0)S_(0)`
`Q_(2) =T_(0)(2S_(0)-S_(0))=T_(0)S_(0)`
`eta = W/(Q_(1)) = (Q_(1)-Q_(2))/(Q_(1))=1 - (Q_(2))/(Q_(1))`
`=1 - (T_(0)S_(0))/(3//2T_(0)S_(0))= 1/3`