GATE ME 2022 Set 1 — Question 34
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Thermodynamics → Laws & Properties → Work & Heat in Processes
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Question
A polytropic process is carried out from an initial pressure of kPa and volume of m to a final volume of m. The polytropic index is given by . The absolute value of the work done during the process is _______ kJ (round off to decimal places).
Correct answer
404 to 414
Solution
Given:
Initial pressure, kPa
Initial volume, m
Final volume, m
Polytropic index, For a polytropic process, the relationship between pressure and volume is .
First, we find the final pressure :The work done () in a polytropic process is given by:The absolute value of the work done is kJ.According to the official answer key, the acceptable range is 404.00 to 414.00.
Initial pressure, kPa
Initial volume, m
Final volume, m
Polytropic index, For a polytropic process, the relationship between pressure and volume is .
First, we find the final pressure :The work done () in a polytropic process is given by:The absolute value of the work done is kJ.According to the official answer key, the acceptable range is 404.00 to 414.00.
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