GATE CY discipline:chemistry-and-materials PYQs & Answers — Page 59

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Questions 581–590 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 59 of 65

The spacing between the two adjacent lines of the microwave spectrum of H³⁵Cl is 6.35 × 10¹¹ Hz. Given that the bond length of D³⁵Cl is 5% greater than that of H³⁵Cl, the corresponding spacing for D³⁵Cl is ______ × 10¹¹ Hz. (Up to two decimal places)

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For a diatomic vibrating rotor, in vibrational level

and rotational level J, the sum of the rotational and vibrational energies is 11493.6 cm⁻¹. Its equilibrium oscillation frequency is 2998.3 cm⁻¹, anharmonicity constant is 0.0124 and rotational constant under rigid rotor approximation is 9.716 cm⁻¹. The value of J is ____________. (Up to nearest integer)

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Number of carbonyl groups present in the final product of the following reaction sequence is __________.

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A tetrapeptide, made up of natural amino acids, has alanine as the N-terminal residue which is coupled to a chiral amino acid. Upon complete hydrolysis, the tetrapeptide gives glycine, alanine, phenylalanine and leucine. The number of possible sequences of the tetrapeptide is _____.

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The strongest band observed in the IR spectrum of the final product of the following reaction appears, approximately, at _____ × 100 cm⁻¹. (Up to one decimal place)

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Consider

particles at temperature

, pressure

, volume

and chemical potential

having energy

. The parameters that are kept constant for a canonical ensemble are

Your answerChoose one option.

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For ortho-hydrogen, the nuclear wavefunction and the rotational quantum number, respectively, are

Your answerChoose one option.

antisymmetric and even

symmetric and odd

symmetric and even

antisymmetric and odd

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m₁ and m₂ are the slopes (dP/dT) of the solid-liquid equilibrium lines in the P-T phase diagrams of H₂O and CO₂, respectively. For P < 10 atm, the values of m₁ and m₂ are

Your answerChoose one option.

m₁ > 0 and m₂ > 0

m₁ > 0 and m₂ < 0

m₁ < 0 and m₂ < 0

m₁ < 0 and m₂ > 0

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The rate constant of a reaction is 1.25 × 10⁻⁴ mol L⁻¹ s⁻¹. If the initial concentration of the reactant is 0.250 mol L⁻¹, the total time (in seconds) required for complete conversion is ______.

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Consider an ideal gas of volume

at temperature

and pressure

. If the entropy of the gas is

, the partial derivative

is equal to

Your answerChoose one option.

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GATE CY discipline:chemistry-and-materials PYQs

Question 51

Question 52

Question 53

Question 54

Question 55

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Question 5