Expansion of ideal gas in piston-cylinder arrangement - GATE ME '03
Nitrogen gas (molecular weight 28) is enclosed in a cylinder by a piston, at the initial condition of 2 bar, 298 K, and 1 m3. In a particular process, the gas slowly expands under isothermal conditions, until the volume becomes 2 m3. Heat exchange occurs with the atmosphere at 298 K during this process. The work interaction for the Nitrogen gas is ____ A. 200 kJ B. 138.6 kJ C. 2 kJ D. −200 kJ
The entropy change for the system during the process in kJ/K is ______ A. 0.4652 B. 0.0067 C. 0 D. −0.6711
Answer:
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