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Q.

Calculate ΔSο Universe for the reaction at 300 K (in J/K.mol)
 Ag+3Bg 2C g,ΔrH0300=99KJ/mol
Given  SmοA=20JK.mol,SmοB=50J/K.mol,SmοC=70J/K.mol
 

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answer is 300.

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Detailed Solution

ΔrSο=2X702050X3=30J/K.molΔrGο=ΔrHοT.ΔrSο=99300X301000=99+9=90KJ/molΔGο=TΔSTotal0 90KJ/mol=300.ΔSTotal0 90X1000300=ΔSTotal0 ΔSTotal0 =300J/K.mol

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