1

JEE Main 2020 (Online) 4th September Morning Slot

MCQ (Single Correct Answer)

+4

-1

For one mole of an ideal gas, which of these
statements must be true?

(a) U and H each depends only on temperature

(b) Compressibility factor z is not equal to 1

(c) C

(d) dU = C

(a) U and H each depends only on temperature

(b) Compressibility factor z is not equal to 1

(c) C

_{P, m}– C_{V, m}= R(d) dU = C

_{V}dT for any process2

JEE Main 2020 (Online) 9th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

The true statement amongst the following is :

3

JEE Main 2020 (Online) 9th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

If enthalpy of atomisation for Br

_{2(1)}is x kJ/mol and bond enthalpy for Br_{2}is y kJ/mol, the relation between them :4

JEE Main 2019 (Online) 12th April Morning Slot

MCQ (Single Correct Answer)

+4

-1

Enthalpy of sublimation of iodine is 24 cal g

^{–1 }at 200^{o}C. If specific heat of I_{2}(s) and l_{2}(vap) are 0.055 and 0.031 cal g^{–1}K^{–1}respectively, then enthalpy of sublimation of iodine at 250^{o}C in cal g^{–1}is :Questions Asked from Thermodynamics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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