GATE XE 2023 Paper 1 — page 31

Questions 91–93 of 175. Imported answers require review unless explicitly marked reviewed.

If an ideal air-standard Otto cycle and an ideal air-standard Diesel cycle operate on the same compression ratio, then the relation between the thermal efficiencies (

) of the cycles is

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and

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The following statements are given: (i) The third law of thermodynamics deals with the entropy of a substance at the absolute zero temperature. (ii) Entropy of any non-crystalline structure is zero at absolute zero temperature. (iii) At the absolute zero temperature, the crystal structure has maximum degree of order. (iv) The thermal energy of the substance at absolute zero temperature is maximum. The correct option describing these statements is

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Only (i) is correct

Only (ii) is correct

Both (i) and (iii) are correct

Both (i) and (iv) are correct

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Adiabatic bulk modulus of a substance is defined as

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2023 · Paper 1

Question 91

Question 92

Question 93