More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
PPSC Physics Chapter 3 Thermal Properties of Matter MCQs With Answers
Question # 1
How do solar heat and light reach the Earth.
Choose an answer
By radiation
By convection
By conduction
By conduction and convection
Previous
Skip
Next
Question # 2
The term used for heat capacity per unit mass is.
Choose an answer
Latent heat
Specific heat
Energy density
Specific energy
Previous
Skip
Next
Question # 3
Why freezer a refrigerator is located in the top section
Choose an answer
Motor is not affected
Heat gained from environment is less
The entire chamber of freezer is cooled quickly
Heat gained from environment is more
Previous
Skip
Next
Question # 4
Which gas strictly obeys gas laws.
Choose an answer
Hydrogen gas
Inert gas
Ideal perfect gas
Helium gas
Previous
Skip
Next
Question # 5
The temperature of a certain substance in Celsius scale of temperature is 800
o
C in Kelvin scale it is.
Choose an answer
173 K
931 K
1073 K
1193 K
Previous
Skip
Next
Question # 6
Diffusion of gases occurs because the molecules of the
Choose an answer
Gas present in a higher concentration exerts a high pressure
Gases are different
Gasses attract each other
Gasses over about randomly
Previous
Skip
Next
Question # 7
Which of the following is an example of an irreversible process.
Choose an answer
Isothermal and adiabatic process
Melting of ice
Work done against friction
Pettier effect
Previous
Skip
Next
Question # 8
Which of the following is defined as the amount of heat required to raise the temperature of 1 g of water by 1
o
C
Choose an answer
Joule
BTO
Electron volt
Calorie
Previous
Skip
Next
Question # 9
The transfer of thermal energy between regions of matter due to a temperature gradient is called.
Choose an answer
Conduction
Radiation
Convection
Sublimation
Previous
Skip
Next
Question # 10
Which following properties of molecules of a gas is same for all gases at a particular temperature.
Choose an answer
Momentum
Mass
velocity
K.E.
Previous
Skip
Next
Question # 11
Which of the following is the ideal gas equation.
Choose an answer
PV -n RT
P/V = n RT
V/P = nR/T
PV = T/nR
Previous
Skip
Next
Question # 12
When a perfect gas is supposed to expand freely in an isolated vessel the gas has undergone.
Choose an answer
An increase in pressure
An increase in temperature
A change in phase
A change in entropy
Previous
Skip
Next
Question # 13
In which given process does the system always return to the original thermodynamic state.
Choose an answer
Cyclic
Adiabatic
isothermal
Isobaric
Previous
Skip
Next
Question # 14
The pressure of a goas is directly proportion to
Choose an answer
Mean velocity of the molecules
Mean square velocity of the molecules
Root mean square velocity of the molecules
Instantaneous velocity of the molecules
Previous
Skip
Next
Question # 15
The average K.E. of the molecules of an ideal gas in a closed rigid container is increased by a factor of 4 What happen to the pressure of the gas.
Choose an answer
It remains the same
It increases by a factor of 2
It increases by a factor of 4
It increases by a factor of 8
Previous
Skip
Next
Question # 16
When heat a supplied to a metallic sphere which one of the following changes will occur.
Choose an answer
the mass of the sphere increases
The volume of the sphere increases
The density of the sphere increases
The internal energy of the sphere increases
Previous
Skip
Next
Question # 17
Mean free path of gas molecules is inversely proportional to its
Choose an answer
Volume
Pressure
Temperature
Size
Previous
Skip
Next
Question # 18
Advantage of using gases as thermornetic substrates is taht
Choose an answer
Gases have a small coefficient of expansion
Expansion of gases is irregular
Gases can be obtained in pure form
Gases have a large coefficient of expansion.
Previous
Skip
Next
Question # 19
A 4 kJ mass of copper of specific heat capacity of 400 J kg-1k-1 is heated for 160 s by a heater of power 200 W what is the rise in temperature.
Choose an answer
10 K
16 K
100 K
160 K
Previous
Skip
Next
Question # 20
Which of the following pairs represent units of the same physical quantity.
Choose an answer
Kelvin and joule
Kelvin and calrorie
Newton and calorie
Joule and calorie
Previous
Skip
Next
Question # 21
A convention current is the movement of fluid caused by the change in.
Choose an answer
Pressure
Temperature
Densities
Volume
Previous
Skip
Next
Back