Ideal gas expansion
Chemistry
Level
2
The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is (are) correct?
B and D
A and B
A, C, and D
B and C
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1 solution
For isothermal process t remains constant And U1 = 0 in isothermal whereas it is equal to work in adiabatic i.e., U2 = w and w = -P(V2 - V1) and in expansion V2 - V1is positive therefore w and U2 becomes negative which make U1>U2 . Well I really think that the third one is incorrect