One mole of an ideal monoatomic gas expands isothermally against constant external pressure of 1 atm from initial volume of 1L to a state where its final pressure becomes equal to external pressure. I

Question

One mole of an ideal monoatomic gas expands isothermally against constant external pressure of 1 atm from initial volume of 1L to a state where its final pressure becomes equal to external pressure. If initial temperature of gas is 300K then total entropy change of system in the above process is:
[R = 0.082L atm mol^-1 K^-1 = 8.3 mol^-1 K^-1]

Prashant Kotian · Accepted Answer

Correct answer: B. f i i f V P S nRln Rln V P                300R Rln Rln(24.6) 1L×1atm      

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