FA 1

Question 1

Diffusion of one gas into another until the mixing is complete and the composition of the system is homogeneous throughout the system

Answer 1

Spontaneous

Question 2

Expansion of a gas into an evacuated space

Answer 2

Spontaneous

Question 3

Expansion of gas from any region of higher pressure into one of lower pressure takes place spontaneously until the pressure distribution is uniform throughout.

Answer 3

Spontaneous

Question 4

Diffusion of a solute from a concentrated solution into pure solvent, or into a dilute solution, will take place without external intervention

Answer 4

Spontaneous

Question 5

The conduction of heat along a bar o metal which is hot at one end and cold at the other end.

Answer 5

Spontaneous

Question 6

The transfer of heat from a hotter body to a colder body by radiation is spontaneous. All the spontaneous processes represent a tendency to approach a state of thermodynamic equilibrium.

Answer 6

Spontaneous

Question 7

Flow of liquids from a higher to a lower level is a spontaneous process; the flow continues until the two levels are equal and a mechanical equilibrium is attained. The reverse process is not observed to occur.

Answer 7

Spontaneous

Question 8

When a solute such as ammonium chloride is added to water, it dissolves with the absorption of heat. The dissolution is endothermic and spontaneous while the reverse process where in the solid ammonium chloride separates from the solution with the evolution of heat leaving pure water is not observed.

Answer 8

Spontaneous

Question 9

TRUE/ FALSE

Spontaneous processes never revert themselves without the intervention of an external agency

Answer 9

TRUE

Question 10

TRUE/ FALSE
A system in equilibrium under a given set of conditions will not undergo detectable change unless the conditions are altered. Thus the spontaneous processes are not thermodynamically reversible.

Answer 10

TRUE

Question 11

TRUE/ FALSE

Spontaneous processes have a natural tendency to move towards a state of equilibrium

Answer 11

TRUE

Question 12

TRUE/ FALSE

All natural processes proceed spontaneously (i.e., without external aid) and are irreversible in character)

Answer 12

TRUE

Question 13

Water decomposes into hydrogen and oxygen gases with application of electricity.

Answer 13

Non-spontaneous

Question 14

A spoon dipped in boiling water gets hot

Answer 14

spontaneous

Question 15

Wood burns to ash after being set on fire

Answer 15

spontaneous

Question 16

Silverware tarnish when exposed to air

Answer 16

spontaneous

Question 17

Table salt dissociates into sodium and chlorine ions in water.

Answer 17

spontaneous

Question 18

water molecules form from hydrogen and oxygen gases

Answer 18

Non-spontaneous

Question 19

Refers to how it occurs on its own without the help of any external factors.

Answer 19

spontaneous

Question 20

water always flows from the faucet down the sink.

Answer 20

spontaneous

Question 21

a cold coffee left on the table will never become hot by itself

Answer 21

spontaneous

Question 22

a spent battery does not recharge without an external input

Answer 22

spontaneous

Question 23

TRUE/FALSE

Spontaneity only tells whether a reaction will occur or not.

Answer 23

True

Question 24

TRUE/FALSE

Spontaneity does not predict the rate of a process (how fast or slow it occurs)

Answer 24

True

Question 25

The combustion of alcohol is slow.

Answer 25

Non-spontaneous

Question 26

Rusting of iron is fast.

Answer 26

Non-spontaneous

Question 27

TRUE/FALSE

Randomness influences spontaneity. Spontaneous processes occur from an ordered state to a more random arrangement.

Answer 27

True