Lec3

Question 1

physical equilibrium is…..

Answer 1

physical equilibrium is an equilibrium in which the physical state of the system does not change

Question 2

chemical equilibrium is……

Answer 2

chemical equilibrium is the equilibrium state in which the concentrations of reactants and products is not changed with time

Question 3

Types of physical equilibrium:

Answer 3

1.Solid-Liquid Equilibrium
2.Liquid-Vapour Equilibrium
3.Solid-Vapour Equilibrium

Question 4

Phase is …..

Answer 4

is physically distinct portion of a system having its own boundary

Question 5

Every pure material is considered to be a _________

Answer 5

Phase

Question 6

Sometimes, a single-phase system is termed __________

Answer 6

Homogeneous

Question 7

• Gaseous state always a ________ phase → mixed at atomic or molecular level

Answer 7

Single

Question 8

The terms _____ and ______ are used to name two different arrangements of crystalline structures.

Answer 8

BCC
FCC

Question 9

BCC stands for body-centered cubic structure whereas FCC stands for face-centered cubic structure.
T/F

Answer 9

T

Question 10

Under certain conditions of pressure and temperature, and any change in these conditions leads to a ____________________ from one phase to the other.

Answer 10

shift in the equilibrium

Question 11

The set of all states of a system is known as the system’s ___________ , and the degrees of freedom of the system are the dimensions of the __________.

Answer 11

Phase space
Phase space

Question 12

properties of the phase in a particular system

Answer 12

1 . do not depend on the amount of matter present (Intensive properties), such as temperature, pressure, and density

2 .It depends on the amount of matter (Extensive properties) such as weight and size.

Question 13

The degrees of freedom for a particular system are known as _________________

Answer 13

independent and dependent variables