The following data are from a laboratory experiment that examines the relationship between solubility and thermodynamics In this experiment KNO 3 (s) is placed in a test tube containing some water The solution is heated until all the KNO 3 (s) is dissolved and then allowed to cool The temperature a...

To calculate rG rH and rS for the dissolution of KNO3s we will need to use the Vant Hoff equation lnKsp HRT SR Where Ksp is the equilibrium constant f ...

The following data are from a laboratory experiment that examines the relationship between solubility and thermodynamics. In

Question:

The following data are from a laboratory experiment that examines the relationship between solubility and thermodynamics. In this experiment KNO₃(s) is placed in a test tube containing some water. The solution is heated until all the KNO₃(s) is dissolved and then allowed to cool. The temperature at which crystals appear is then measured. From this experiment we can determine the equilibrium constant, Gibbs energy, enthalpy, and entropy for the reaction. Use the following data to calculate Δ_rG, Δ_rH, and Δ_rS for the dissolution of KNO₃(s). (Assume the initial mass of KNO₃(s) was 20.2 g.)

Total Volume, mL 25.0 29.2 33.4 37.6 41.8 46.0 51.0 Temperature Crystals Formed, K 340 329 320 313 310 306 303