InterviewSolution
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InterviewSolution
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From the given table answer the following question: `{:(,CO(g),CO_(2)(g),H_(2)O(g),H_(2)(g)),(DeltaH_(298)^(@)(-"KCal"//"mole"),-26.42,-94.05,-57.8,0),(DeltaH_(298)^(@)(-"KCal"//"mole"),-32.79,-94.24,-54.64,0),(S_(298)^(@)(-"Cal"//"k mol"),47.3,51.1,?,31.2):}` Reaction:`H_(2)O(g) + CO(g) hArr H_(2)(g)+CO_(2)(g)` Calculate `S_(298)^(@) [H_(2)O(g)]` |
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Answer» Correct Answer - (i) -9.83 kCal; (ii) -6.81 kCal, (iii) -10.13 Cal/K, (iv) -9.83 kCal, (v) +45.13 Cal/K (i) `DeltaH=0-94.05-[-57.8-26.42]=-9.83` kCal (ii) `DeltaG=0+(-94.24) -[-54.64-32.79]=-6.81` kCal (iii) `DeltaS=(DeltaH-DeltaG)/(T)=-10.13` Cal (iv) `DeltaH=DeltaU+Deltan_(g)RT" "rArr Deltan_(g)=0` `DeltaU=-9.83` kCal (v) `-10.13=31.2+51.1-[x+47.3]` `x=45.13" Cal/K"` |
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