ECAT Pre General Science Chapter 11 online mcq test with answers for Physics chapter 11 (Heart & Thermodynamics)

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ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	For making cooking utensils, which of the following pairs of properties is most suited?	A. Low specific heat and high conductivity B. Low specific heat and low conductivity C. High specific heat and high conductivity D. High specific heat and low conductivity
2	The curve representing an adiabatic process is called	A. isotherm B. adiabat C. adiable D. none of them
3	A succession of events which bring the system back to its initial condition is called	A. reversible process B. irreversible process C. a cycle D. none of them
4	First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about	A. how heat is absorbed B. how heat extracted C. how this conversion takes place D. none of them
5	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	A. second law thermodynamics B. first law of thermodynamics C. third law of thermodynamics D. none of them
6	A process is a reversible process, if the entropy of the system	A. increases B. decreases C. remains constant D. none of them
7	If the distance between two charges is doubled, the force between them will become:	A. Double B. Half C. Three times D. One fourth
8	A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be	A. 1/2 B. More than 1/2 C. Less than 1/2 D. Between 1 and 2
9	At absolute temperature, the kinetic energy of the molecules	A. Becomes zero B. Becomes maximum C. Becomes minimum D. Remain constant
10	On colliding in a closed container, the gas molecules	A. Transfer momentum to the walls B. Momentum becomes zero C. Move in opposite directions D. Perform Brownian motion

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ECAT Pre General Science Physics Chapter 11 MCQ Test With Answer

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

ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

The volume of universal gas constant R is:

The curve representing an adiabatic process is called

We cannot utilize the heat contents of oceans and atmosphere because

Real gases strictly obey gas law at:

In an adiabatic expansion, the temperature of the gas

One mole of any substance contain

Which quantity is important in stating the entropy of the system

Energy gas behaves like an ideal gast at

Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:

We can express the work in term of

Absolute zero is considered as that temperature at which:

Average KE of a gas molecule has:

Which of the following is not an example of adiabatic process

The process which is carried out at constant temperature is known as

The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :

The state in which ice, water and vapour coexists in equilibrium is called

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

If a process cannot be retraced in the backward direction by reversing the controlling factors, it is

Rice takes longest to cook

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

First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about

The motion of molecules in gases is:

The relationship between Boltzmann constant k with R and NAis given as:

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

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

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

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

The absolute temperature for an ideal gas is

The temperature scale approved in SI units is:

The work done on the system by the environment is considered as

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ECAT Physics Chapter 11 Important MCQ's

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The relationship between Boltzmann constant k with R and N_Ais given as: