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Question

Calculate the entropy change for the following process possessing.
ΔHtransition=2090Jmol1
1mole Sn(α,13oC)1mole Sn(β,30oC)

Solution
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1mole Sn(α,13oC)1mole Sn(β,30oC)
Ttrans=13+273=286K
ΔStrans=ΔHtransTtrans(K)=2090J/mol286K
ΔStrans=7.307J/K/mol

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