The melting temperature of A is 900 K. To measure its enthalpy of melting at 800 K, one mole of solid A at 800 K is dissolved into 4 moles of liquid B kept at 800 K. A total amount of 10 kJ of heat is absorbed by the liquid. 1) If A and B form ideal liquid solution, what is the enthalpy of melting of A at 800 K?

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Chapter6: Steam Distillation, Vacuum Distillation, And Sublimation
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The melting temperature of A is 900 K. To measure its enthalpy of melting at 800 K, one mole of
solid A at 800 K is dissolved into 4 moles of liquid B kept at 800 K. A total amount of 10 kJ of
heat is absorbed by the liquid.
1) If A and B form ideal liquid solution, what is the enthalpy of melting of A at 800 K?
2) If A and B form regular solution with a regular solution coefficient 2= 5 kJ /mol, what is the
enthalpy of melting of A at 800 K?
Transcribed Image Text:The melting temperature of A is 900 K. To measure its enthalpy of melting at 800 K, one mole of solid A at 800 K is dissolved into 4 moles of liquid B kept at 800 K. A total amount of 10 kJ of heat is absorbed by the liquid. 1) If A and B form ideal liquid solution, what is the enthalpy of melting of A at 800 K? 2) If A and B form regular solution with a regular solution coefficient 2= 5 kJ /mol, what is the enthalpy of melting of A at 800 K?
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