Calculate the entropy changes of the system

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Problem- One mole of ideal gas is isothermally expanded from 5.0L to 10L at 300K. Calculate the entropy changes of the system, surroundings and universe if the process is carried out (A) , reversibly and (B)Irreversibly against an external pressure of 2.0 atm.

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Calculate the entropy changes of the system : Problem- One mole of ideal gas is isothermally expanded from 5.0L to 10L at 300K. Calculate the entropy changes of the system, surroundings and universe if the process is carried out (A) , reversibly and (B)Irreversibly against an external pressur..
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