Chapter 11: Problem 19
An ideal gas is expanded from \(\left(p_{1}, V_{1}, T_{1}\right)\) to \(\left(p_{2}, V_{2}, T_{2}\right)\) under different conditions. The correct statement \((\mathrm{s})\) among the following is \((\) are \()\) [A] The work done on the gas is maximum when it is compressed irreversibly from \(\left(\mathrm{p}_{2}, \mathrm{~V}_{2}\right)\) to \(\left(\mathrm{p}_{1}, \mathrm{~V}_{1}\right)\) against constant pressure \(\mathrm{p}_{1}\) [B] If the expansion is carried out freely, it is simultaneously both isothermal as well as adiabatic [C] The work done by the gas is less when it is expanded reversibly from \(V_{1}\) to \(V_{2}\) under adiabatic conditions as compared to that when expanded reversibly from \(\mathrm{V}_{1}\) to \(\mathrm{V}_{2}\) under isothermal conditions [D] The change in internal energy of the gas is (i) zero, if it is expanded reversibly with \(\mathrm{T}_{1}=\mathrm{T}_{2}\), and (ii) positive, if it is expanded reversibly under adiabatic conditions with \(\mathrm{T}_{1} \neq \mathrm{T}_{2}\)
Short Answer
Step by step solution
Key Concepts
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