Q.

For an irreversible isothermal expansion of an ideal gas

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a

ΔSsys =ΔSsur 

b

ΔSsys=ΔSsur

c

ΔSsys >ΔSsurr 

d

ΔSsyss <ΔSsurr 

answer is C.

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Detailed Solution

For an irreversible process

 ΔStotal =ΔSsys +ΔSsurr = positive; 

Hence,

 ΔSsys >ΔSsurr 

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