JEE Advanced 2016 Paper 1 Offline | Thermodynamics Question 22 | Chemistry

JEE Advanced 2016 Paper 1 Offline

MCQ (Single Correct Answer)

-1

One mole of an ideal gas at 300 K in thermal contact with surroundings expands isothermally from 1.0 L to 2.0 L against a constant pressure of 3.0 atm. In this process, the change in entropy of surrounding ($$\Delta$$S_surr)in JK^–1 is (1L atm = 101.3 J)

5.763

1.013

– 1.013

– 5.763

JEE Advanced 2015 Paper 1 Offline

MCQ (Single Correct Answer)

-4

Match the thermodynamics processes given under column I with expression given under column II

Column I
(A) Freezing water at 273 K and 1 atm
(B) Expansion of 1 mol of an ideal gas into a vacuum under isolated conditions.
(C) Mixing of equal volumes of two ideal gases at constant temperature and pressure in an isolated container.
(D) Reversible heating of H₂(g) at 1 atm from 300K to 600K, followed by reversible cooling to 300K at 1 atm

Column II
(p) q = 0
(q) w = 0
(r) $$\Delta S_{sys}$$ < 0
(s) $$\Delta U$$ = 0
(t) $$\Delta G$$ = 0

A $$\to$$ r,t; B $$\to$$ q,s; C $$\to$$ p,s; D $$\to$$ p,q,s;

A $$\to$$ r,t; B $$\to$$ p,s; C $$\to$$ s; D $$\to$$ q,s,t;

A $$\to$$ r,t; B $$\to$$ p,q,s; C $$\to$$ p,q,s; D $$\to$$ p,q,s,t;

A $$\to$$ r,t; B $$\to$$ p,s; C $$\to$$ p,q,s; D $$\to$$ p,s,t;

JEE Advanced 2014 Paper 2 Offline

MCQ (Single Correct Answer)

-0.75

For the process
H₂O(l) $$\to$$ H₂O(g)
at T = 100^oC and 1 atmosphere pressure, the correct choice is

$$\Delta S$$_system > 0 and $$\Delta S$$_surroundings > 0

$$\Delta S$$_system > 0 and $$\Delta S$$_surroundings < 0

$$\Delta S$$_system < 0 and $$\Delta S$$_surroundings > 0

$$\Delta S$$_system < 0 and $$\Delta S$$_surroundings < 0