Please help with part j! (11%) Problem 8: A monatomic ideal gas initially fills
ID: 1731938 • Letter: P
Question
Please help with part j!
(11%) Problem 8: A monatomic ideal gas initially fills a VO-0.35 m container at P0-55 kPa. The gas undergoes an isobaric expansion to V1 -0.85 m. Next it undergoes an isovolumetric cooling to its initial temperature To. Finally it undergoes an isothermal compression to its initial pressure and volume 10% Part (a) Identify the P-V diagram that correctly represents this three step cycle 10% Part (b) Calculate the work done by the gas, WI, in kilojoules, during the isobaric expansion (first process) 10% Part (c) Calculate the heat absorbed Q1, in kilojoules, during the isobaric expansion (first process) 10% Part (d) Write an expression for the change in internal energy, U1 during the isobaric expansion (first process) 10% Part (e) Calculate the work done by the gas, W2, in kilojoules, during the isovolumetric cooling (second process) 10% Part (f) Calculate the heat absorbed Q2, in kilojoules, during the isovolumetric cooling (second process) 10% Part (g) Calculate the change in internal energy by the gas, ??2-in kilojoules, during the isovolumetric cooling (second e process) ? 10% Part(h) Calculate the work done by the gas, W3 in kilojoules, during the isothermal compression (third process) -* 10% Part (j) Calculate the heat absorbed Q3, in kilojoules, during the isothermal compressions (third process) 0358.33061 10% Part (i) Calculate the change in internal energy, ??3, n kilojoules, during the isothermal compression (third process) Grade Summary Deductions Potential 0% 100% 7 8 9 HOME 456 tan sin cotanasin) acos(O atan acotan sinhO coshOtanhO cotanh(0 cos Submissions ^ Attempts remaining:- % per attempt) detailed view 0 END Degrees Radians O BACKSPA DEL CLEAR 0% 0% 0% Submit 2 Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback Use the First Law of Thermodynamics to determine the heat absorbed Submission History All Date times are displayed in Pacific Standard Time Red submission date times indicate late work Date Time Answer Hints Feedback 1 Aug 01,3:07 PM 23-24.1694 2018 23 24.17 23-58.3306 -Use the First Law of Thermodynamics to determine the heat absorbed 03 =-58.33 23 58.3306 Q3 58.33 2 Aug 01 2018 3:07 PM 3 Aug 01 2018 3:08 PMExplanation / Answer
Part j)
By First law of thermodynamics
?U3 = Q3 - W3
Since for isothermal process ?U3 = 0 J we get,
Q3 = W3 ……..(value from part h)