0.5 mole of an ideal monoatomic gas at STP conditions undergoes a process , if the final volume of gas is `(22.5xxe)` lit, then the entropy change in

Monjur Alahi

0.5 mole of an ideal monoatomic gas at STP conditions undergoes a process , if the final volume of gas is `(22.5xxe)` lit, then the entropy change in thid process in k/J/mol is .
(Given: Process isobaric )
(Fill your answer by multiplying it with `(100)/(R)`)


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Salim Ahmed Kawsar

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`(V_(1))/(V_(2))= (T_(1))/(T_(2)) rArr (22.7//2)/(22.7. e)= (273)/(T_(2))rArr" " T_(2) = 273.(2e)`
`DeltaS = nC_(p)lm.(T_(2))/(T_(1))" "0.5 xx (5)/(2)R xx ln. ((273).(2e))/((273))`
`= (5)/(4) R(ln 2e) =(5)/(4) R(ln 2 + ln e)" "thereforeif ln2 =0.7`
`= (5)/(4) Rxx(1.7) xx(100)/(R)" "= 212.5`

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