An ideal monoatomic gas is undergoing an irreversible change as shown in the figure: (Assume the boundary to be thermally insulating and piston is massless, frictionless and moveable). V2 = Volume of

Question

An ideal monoatomic gas is undergoing an irreversible change as shown in the figure: (Assume the boundary to be thermally insulating and piston is massless, frictionless and moveable). V2 = Volume of second partition, with initial conditions P_i, V_i, T_i in first partition and P_2 = 0 in second partition. Final state has V_2 = 1.73V_i. P_i = Initial pressure, V_i = Volume of first partition, T_i = Initial temperature, P_2 = External pressure, T_2 = Final temperature. Now, select the correct option(s) regarding the above process: (Where T_2 = final temperature of gas)

Prashant Kotian · Accepted Answer

Correct answer: A,C. Gas is undergoing free expansion, so, process is irreversible adiabatic as well as isothermal. 2 syst 1 V S nR n V    i i

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