To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at

To determine the enthalpy and entropy of dissolving a compound, you need to measure the K_sp at multiple Choose... . Then, plot In(Ksp) vs. Choose... . The slope of the plotted line relates to the Choose... of dissolving and the intercept of the plotted line relates to the Choose..., of dissolving.

Solutions

Expert Solution

To determine enthalpy and entropy of dissolving compound , you need to measure Ksp at multiple "Temperatures".

Then, plot ln(Ksp) vs "1/T". The slope of plotted line relates to the "- ΔHo/ R" or " enthalpy" of dissolving and the

intercept of plotted line relates to the "ΔSo/ R" or "entropy" of dissolving.

ΔGo = - RT ln Ksp --------------------> (1)

ΔGo = ΔHo - T ΔSo ----------------> (2)

From equation (1) and (2) ,

- RT ln Ksp = ΔHo - T ΔSo ------------------> (3)

ln Ksp = -ΔHo/RT + ΔSo/R

Plot of ln Ksp vs 1/T,

Slope = -ΔHo/R

Intercept = ΔSo/R

queen_honey_blossom answered 2 years ago

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​To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at

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Expert Solution

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To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at