4. Phase Diagrams

Thermodynamics Basics — Quiz

Test your understanding of thermodynamics basics with 5 practice questions.

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Practice Questions

Question 1

Which thermodynamic potential is minimized under conditions of constant temperature and pressure?

Question 2

At equilibrium between two phases in a material, which condition applies to their chemical potentials?

Question 3

In an ideal binary solution, the chemical potential of component 1 is expressed by which relation?

Question 4

Calculate the molar Gibbs free energy of mixing ΔGₘᵢₓ for an ideal equimolar binary solution at T=300 K. (Take R=8.314 J mol⁻¹ K⁻¹.)

Question 5

For a pure metal with enthalpy of fusion ΔH_f and melting temperature T_m, what is the approximate driving force ΔG for solidification at undercooling ΔT=T_m–T?