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Work done in Adiabatic process and some past Questions
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Derivation of work done in adiabatic process. Solved GATE 2003,2007 AND 2011 PROBLEMS

Vidhi Shah
I am an M.Tech student of NIT TRICHY. I have done B.Tech in Chemical Engineering.GATE 2018 rank 704.

U
Unacademy user
sir kya ye boards ke liyea enough hai
Ankit Dhingra
a month ago
Yes
mam i have a doubt. in some question in aidabetic workdone they have used (P1V1-P2V2/Y-1) IN SOME PLACE THEY HAVE USED P1V1/Y-1[(P2/P1)Y-1/Y-1} ...BUT IF I DO SAME MATH USING THESE TWO DIFFERENT FORMULA THE VALUES ARE DIFFERENT. so when these formula are used?? in adibetic expansion and compression what are the formula are used?? pls tell me
Vidhi Shah
a year ago
it depends on the process. for internal reversible process in closed system 1st formula is used. for open system 2nd formula is used
  1. Work done in adiabatic Process and Some past problems


  2. Hello! I am Vidhi Shah M.Tech NIT Tiruchirappalli You can find me at: unac unacademy.com/user/vidhi94


  3. Work done in adiabatic Process and Some past problems


  4. C, du 2


  5. GATE 2003 One mole or Nitrogen at 8 bar and 600K is in a piston cylinder arrangement Arrangemen It Is brought tol bar IsothermalLy against a resisting pressure of I bar. The work done (in Joules) by the gas is a. 30554 b. 10373 . 4988.4 d 4364.9 5 103 308


  6. GATE 2011 Q14 One mole of methane is contained in a leak proof piston-cylinder asembly at 8 bar and 1,000K. The gas undergoes isothermal expansion to 4 bar under reversible conditions. Methane can be considered as an ideal gas under these conditions. The value of universal gas constant is 8.314 Jmol K-1. The heat transfered (in kJ) during the processis (A) 11.52 (B) 5.76 (C)4.15 (D) 2.38


  7. 2. 562 92 C >


  8. GATE 2007 The state of an ideal gas is changed from (Ti, Pi) to (T2, P2) in a constant volume process. To calculate the change in enthalpy, Ah, ALL of the following properties/variables are required. (A)c,,R,P2 (B) Cp , Ti ,T2 (C) C,, Ti, T2, P, (D) Cv , Pi , P2,T,,T;


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