NEET 2020 Phase 1 | Thermodynamics Question 16 | Chemistry

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NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

For the reaction, 2Cl(g) $$ \to $$ Cl₂(g), the correct option is :

$${\Delta _r}H > 0$$ and $${\Delta _r}S < 0$$

$${\Delta _r}H < 0$$ and $${\Delta _r}S > 0$$

$${\Delta _r}H < 0$$ and $${\Delta _r}S < 0$$

$${\Delta _r}H > 0$$ and $${\Delta _r}S > 0$$

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

The correct option for free expansion of an ideal gas under adiabatic condition is :

q = 0, $$\Delta $$ T < 0 and w > 0

q < 0, $$\Delta $$ T = 0 and w = 0

q > 0, $$\Delta $$ T > 0 and w > 0

q = 0, $$\Delta $$ T = 0 and w = 0

NEET 2019

MCQ (Single Correct Answer)

-1

In which case change in entropy is negative?

Sublimation of solid to gas

2H(g) $$ \to $$ H₂(g)

Evaporation of water

Expansion of a gas at temperature

NEET 2019

MCQ (Single Correct Answer)

-1

Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is [Given that 1 L bar = 100 J]

25 J

30 J

-30 J

5 kJ

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution