1.

Fixedamount of an ideal gas contained ina sealed rigidvessl(V=24.6 litre) at 1.0baris heatedreversiblyfrom 27^(@)to 127^(@) C. Determine charge in G ibb's energy (|DeltaG|in Joule)if entropys=10+10^(+2)T(J//K)

Answer»

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SOLUTION :`dG= V.dP - S.DT"","at CONST. volume"`
`DeltaG = V.DeltaP- int(10+10^(-2)T).dT""(P_(1))/(T_(1))=(P_(2))/(T_(2)) rArrP_(2) = 1 xx 400//300`
`DeltaG=24.6xx((4)/(3)-1) xx 100 -[10xx100+10^(2)xx((T_(2)^(2))/(2)-(T_(1)^(2))/(2))]`
`DeltaG=24.6xx(1)/(3)xx 100 -[1000+10^(2)xx((160000)/(2)-(90000)/(2))]`
` = 24.6 xx(1)/(3)xx100-1000-350=-530 J`


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