Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics
00:00
Question # 1
The unit of thermodynamical scale is
Question # 2
Which quantity is important in stating the entropy of the system
Question # 3
The product of the pressure and volume of an ideal gas is
Question # 4
On a cold morning a metal surface will fell colder to touch than a wooden surface, because
Question # 5
If the distance between two charges is doubled, the force between them will become:
Question # 6
The efficiency of carnot engine cannot be 100% or one unless cold reservoir is at
Question # 7
The relationship between Boltzmann constant k with R and NAis given as:
Question # 8
Generally a temperature scale is established by
Question # 9
When heat is added into the system then change in entropy is
Question # 10
The example of irreversible process is
Question # 11
The length of a metallic rod is 5 meter at 100°C. The coefficient of cubical expansion of the metal will be
Question # 12
In case of an ideal gas, the P.E associated with its molecule is
Question # 13
Real gases strictly obey gas law at:
Question # 14
An isochoric process is one which take place at
Question # 15
During the whole carnot cycle
Question # 16
The second law of thermodynamics is concerned with the circumstances in which
Question # 17
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 # 18
The concept of entropy was introduced into the study of thermodynamics in
Question # 19
Electromagnetic waves emitted by hot bodies are called:
Question # 20
Specific heat at constant pressure is greater than the specific heat at constant volume because
Question # 21
Pressure may be define as _______ per second per unit area:
Question # 22
Absolute temperature can be calculated by
Question # 23
Gas constant per molecule is called:
Question # 24
The behaviour of gases is well accounted by the kinetic theory based on
Question # 25
Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called
Question # 26
The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to
Question # 27
If a system undergoes a natural process it will go in the direction that causes the entropy of the system plus the environment to increase, this is another statement of
Question # 28
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 # 29
Amount of heat required to raise the temperature of a body through 1 K is called its
Question # 30
In thermodynamics, internal energy is the function of
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
