Introduction

Question 1

What is the meaning of Thermodynamics?

Answer 1

Heat in motion

Question 2

Universe is made up of?

Answer 2

System + Surrounding

Question 3

What is system?

Answer 3

1)Part under investigation
2) small part, interested part

Question 4

What is surrounding ?

Answer 4

Everything except system

Question 5

Boundary can be of how many types?

Answer 5

1)
a) Rigid
b) Flexible
2)
a) Real
b) Imaginary
3)
a) Diathermic
b) Adiabatic

Question 6

What is Diathermic boundary?

Answer 6

Boundary through which heat can flow easily

Question 7

What is Adiabatic boundary?

Answer 7

Boundary through which heat cannot flow
∆q=0

Question 8

How many types of system are there and what are they?

Answer 8

1) Open system
2) Closed system
3) Isolated system

Question 9

What is open system?

Answer 9

Such a system where MASS exchange as well as ENERGY exchange takes place

It has IMAGINARY boundary

Question 10

How energy exchange takes place?

Answer 10

By
1)Heat
Or
2) Work

Question 11

What us closed system?

Answer 11

Such a system where only ENERGY takes place

NO mass exchange
( In a closed vessel)

Question 12

What is Isolated system?

Answer 12

Such a system where no mass exchange as well as no energy exchange takes place

It has Adiabatic ( insulating) boundary

Question 13

Extensive Property?

Answer 13

Depends upon
1) Amount of matter
2) Size of sample

Question 14

Examples of Extensive?

Answer 14

1) Mass
2) Volume
3) No of moles
4) Heat Capacity
5) Energy - Heat , Work
6) Enthalpy
7) Entropy
8) Gibb’s Free Energy
9) Internal Energy

Question 15

Intensive properties meaning?

Answer 15

Does not depend upon
Size of sample or amount of matter

Question 16

Intensive Properties examples?

Answer 16

1) Density
2) Reflective Index
3) Specific Heat Capacity
4) Temperature
5) Pressure
6) Concentration
7) Molarity
8) Molality
9) Mole Fraction
10) Normality
11) Molar Entropy/ Enthalpy
( Entropy=Energy)
12) pH

Question 17

Extensive/Extensive=?

Answer 17

Intensive

( X/Y= Z)

Question 18

Formula of Electromotive force?

Answer 18

E.F =Work/ Heat
(W/Q)

Question 19

State Variables/ State Functions/ State parameters meaning?

Answer 19

Variables which define the state or condition of system

State Functions depends upon only INITIAL and FINAL state

eg- PRESSURE, VOLUME, TEMPERATURE of gas

Question 20

State Variables examples?

Answer 20

1) Pressure
2) Temperature
3) Volume
4) no of moles ( n)
5) Enthalpy (H)
6) Entropy (S)
7) Internal Energy ( E/U)
8) Gibb’s Free Energy ( G)

Question 21

Heat and Work are state Functions .
Is it true?

Answer 21

NO, not true
Heat & Work are PATH function

Question 22

What is the value of change in state Functions in any cyclic process?

Answer 22

ZERO
Because state functions depends upon initial & final state and in cyclic they are the same