1

JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

During compression of a spring the work done
is 10kJ and 2kJ escaped to the surroundings as
heat. The change in internal energy, $$\Delta $$U(inkJ)
is :

2

JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

+4

-1

Among the following, the set of parameters that
represents path function, is :

(A) q + w

(B) q

(C) w

(D) H–TS

(A) q + w

(B) q

(C) w

(D) H–TS

3

JEE Main 2019 (Online) 8th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

5 moles of an ideal gas at 100 K are allowed
to undergo reversible compression till its
temperature becomes 200 K.
If C

_{V}= 28 JK^{–1}mol^{–1}, calculate $$\Delta $$U and $$\Delta $$pV for this process. (R = 8.0 JK^{–1}mol^{–1}]4

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

+4

-1

For silver, C

_{p}(J K^{–1}mol^{–1}) = 23 +0.01 T. If the temperature (T) of 3 moles of silver is raised from 300 K to 1000 K at 1 atm pressure, the value of $$\Delta H$$ will be close to :Questions Asked from Thermodynamics (MCQ (Single Correct Answer))

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