JEE Main 2019 (Online) 10th April Morning Slot | Thermodynamics Question 112 | Chemistry

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 :

- 12

- 8

JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

Among the following, the set of parameters that represents path function, is :
(A) q + w
(B) q
(C) w
(D) H–TS

(B) and (C)

(A) and (D)

(B), (C) and (D)

(A), (B) and (C)

JEE Main 2019 (Online) 8th April Evening Slot

MCQ (Single Correct Answer)

-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^–1mol^–1, calculate $$\Delta $$U and $$\Delta $$pV for this process. (R = 8.0 JK^–1 mol^–1]

$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 4 kJ

$$\Delta $$U = 2.8 kJ; $$\Delta $$(pV) = 0.8 kJ

$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 18 kJ

$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 0.8 kJ

PREVIOUS NEXT

Questions Asked from Thermodynamics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions