ECAT Pre General Science Physics Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

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ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

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Question # 1

Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:

Question # 2

The temperature of gas is produced by

Question # 3

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

Question # 4

In the formula P = N0KT, N0denotes:

Question # 5

At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be

Question # 6

Hydrogen and helium of same volume V at same temperature T and same pressure P are mixed to have same volume V. The resulting pressure of the mixtures will be

Question # 7

The example of reversible process is

Question # 8

Gas constant per molecule is called:

Question # 9

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

Question # 10

If an amount of heat enters the system it could

Question # 11

Generally a temperature scale is established by using certain physical properties of a material which varies

Question # 12

First law of thermodynamics is consequence of conservation of

Question # 13

Which quantity is important in stating the entropy of the system

Question # 14

The only significant motion possessed by the mono-atomic gas represented is:

Question # 15

The basis to define a temperature scale that is independent of material properties is provided by

Question # 16

Energy gas behaves like an ideal gast at

Question # 17

According to the second law, which is must to produce work

Question # 18

Average KE of a gas molecule has:

Question # 19

Triple point of water is

Question # 20

Pressure may be define as _______ per second per unit area:

Question # 21

The example of irreversible process is

Question # 22

A carnot cycle consists of

Question # 23

First law of thermodynamic is special case of

Question # 24

Heat travels through vacuum by

Question # 25

Boyle's law is applicable in

Question # 26

10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?

Question # 27

If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I3gives the:

Question # 28

While deriving equation of pressure by kinetic theory of gases, we take into account:

Question # 29

We can express the work in term of

Question # 30

The volume of given mass of a gas will be doubled at atmosphere pressure if the temperature of the gas is changed from 150°C to

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:
A. Ideal gas
B. Inert gas
C. Real gas
D. None of these
2 Real gases strictly obey gas law at:
A. High pressure and low temperatures
B. Low pressures and high temperatures
C. High pressures and high temperatures
D. None of these
3 Gas constant per molecule is called:
A. Universal gas constant
B. Stefen's constant
C. Boltzmann constant
D. Gravitation constant
4 Truth of kinetic energy is confirmed by:
A. Diffusion of gases
B. Brownian motion
C. Both A and B
D. None of these
5 Which quantity is important in stating the entropy of the system
A. initial entropy
B. final entropy
C. change in entropy
D. none of them
6 An isochoric process is one which take place at
A. Constant internal energy
B. Constant entropy
C. Constant volume
D. Constant pressure
7 The internal energy of a system does not depend upon the
A. initial state of the system
B. final state of the system
C. path
D. none of them
8 First law of thermodynamic is special case of
A. Law of conservation of energy
B. Charle's law
C. Law of conservation of mass
D. Boyle's law
9 Which of the following is not thermo dynamical function?
A. Enthalpy
B. Work done
C. Gibb's energy
D. Internal energy
10 The process which is carried out at constant temperature is known as
A. adiabatic process
B. isothermal process
C. isochoric process
D. none of them

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