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chemistry

For the process H2O l→H2Og  at T=100oC  and 1 atmosphere pressure, the correct choice...

For the process H2O l→H2Og  at T=100oC  and 1 atmosphere pressure, the correct choice is
∆Ssystem>0 and ∆Ssurrounding>0
∆Ssystem>0 and ∆Ssurrounding<0
∆Ssystem<0 and ∆Ssurrounding>0
∆Ssystem<0 ∆Ssurrounding<0
Solution:
At 100oC and 1 atmosphere pressure H2Ol⇌H2Og is at equilibrium. For equilibrium ∆Stotal=0 and ∆Ssystem+∆Ssurrounding=0
∴    ∆Ssystem>0 and ∆Ssurrounding<0