Question
Download Solution PDFएक आंतरिक दहन इंजन के संपीडन स्ट्रोक में, शीतलन जल को अस्वीकृत ऊष्मा 65 kJ/kg है और कार्य इनपुट 108 kJ/kg है। कार्यशील द्रव की विशिष्ट आंतरिक ऊर्जा में परिवर्तन होगा:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसिद्धांत:
ऊष्मागतिकी का प्रथम नियम बताता है कि किसी निकाय की आंतरिक ऊर्जा में परिवर्तन इस प्रकार दिया जाता है:
\( Δ U = Q - W \)
जहाँ:
- ΔU = आंतरिक ऊर्जा में परिवर्तन (kJ/kg)
- Q = निकाय में जोड़ी गई ऊष्मा (kJ/kg)
- W = निकाय द्वारा किया गया कार्य (kJ/kg)
दिया गया है:
शीतलन जल को अस्वीकृत ऊष्मा, Q = -65 kJ/kg
कार्य इनपुट, W = 108 kJ/kg
गणना:
ऊष्मागतिकी के प्रथम नियम को लागू करना:
\( Δ U = Q - W \)
\( Δ U = (-65) + (108) \)
\( Δ U = 43\) kJ/Kg
चूँकि Δ U धनात्मक है, यह आंतरिक ऊर्जा में वृद्धि को इंगित करता है।
Last updated on May 20, 2025
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