GATE Metallurgical Thermodynamics: Solutions and chemical potential – Previous Year Questions
11 GATE previous year questions on Solutions and chemical potential (Metallurgical Thermodynamics, Metallurgical Engineering) with answers and explanations, from every paper.
- GATE 2021 MT Q16 – Elements A and B have the same crystal structure. For a dilute solution of B in A, which is true? Here H mix is mixing enthalpy, a B activity and X B…
- GATE 2022 MT Q53 – The partial molar enthalpy of Au in an Ag–Au melt containing 25 mol% Au at 1400 K is −8300 J/mol. Assuming regular-solution behaviour, the activity of…
- GATE 2023 MT Q12 – Formation of an ideal solution leads to
- GATE 2023 MT Q47 – Concerning the chemical potentials of components in a binary system at constant pressure, the correct statement(s) is/are
- GATE 2023 MT Q55 – The enthalpy of formation of an A–B regular solution containing 80 at.% A is 3.36 kJ mol-1. The activity coefficient of A at 500 K in a solution…
- GATE 2024 MT Q14 – In an A–B solid solution, the activity and mole fraction of A are a A and X A. Its activity coefficient is
- GATE 2024 MT Q56 – An ideal solution is made by mixing 10 g of A and 50 g of B at 673 K. Its molar free energy of mixing is kJ mol-1 (one decimal place). Given: R=8.314…
- GATE 2025 MT Q15 – Which one of the following is an intensive property?
- GATE 2025 MT Q50 – The excess molar Gibbs free energy of a solution of elements A and B at 1000 K is GXS=-3000X AX B\ J\,mol-1, where X A and X B are mole fractions. The…
- GATE 2026 MT Q21 – For a regular solution, which one of the following statements is correct? Here H mix is the enthalpy of mixing and S mix is the entropy of mixing.
- GATE 2026 MT Q53 – 20 g of gold (Au) and 20 g of silver (Ag) are mixed to form a single-phase solid solution (assume ideal mixing). The atomic weight of Au is 197 g/mol…