GATE XE 2026 Paper 1 — page 19

Questions 55–57 of 197. Imported answers require review unless explicitly marked reviewed.

Match the Thermodynamic laws in Column I with the description given in Column II.

Column I: P — Zeroth law; Q — First law; R — Second law; S — Third law.

Column II: 1 — Entropy of a perfect crystal at 0 K is zero; 2 — Introduces Entropy; 3 — Defines thermal equilibrium; 4 — Defines internal energy.

Your answerChoose one option.

P → 3; Q → 4; R → 2; S → 1

P → 1; Q → 2; R → 4; S → 3

P → 1; Q → 4; R → 3; S → 2

P → 3; Q → 1; R → 2; S → 4

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Match the material property in Column I with the measurement technique in Column II.

Column I: P — Electrical conductivity; Q — Band gap energy; R — Young’s modulus; S — Heat of fusion.

Column II: 1 — UV-Vis spectroscopy; 2 — 4-Probe method; 3 — Differential scanning calorimetry; 4 — Acoustic measurement.

Your answerChoose one option.

P → 2; Q → 1; R → 4; S → 3

P → 1; Q → 2; R → 4; S → 3

P → 2; Q → 3; R → 4; S → 1

P → 1; Q → 4; R → 2; S → 3

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Which one of the following statements regarding point defects in ionic solids is correct?

Your answerChoose one option.

Frenkel defects are dominant in those ionic solids where there is a considerable size difference between the cation and anion.

Schottky defects are dominant in those ionic solids where there is a considerable size difference between the cation and anion.

Schottky defects are the dominant defects in all ionic solids.

Similar density of both Frenkel and Schottky defects is present in all ionic solids.

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2026 · Paper 1