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	On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves	A. outwards B. inwards C. in either way D. none of these
2	The volume of universal gas constant R is:	A. 8.314 J/K mole K B. 8314 J/K mole K C. 8.314 J/mole K D. None of these
3	The basis to define a temperature scale that is independent of material properties is provided by	A. carbon cycle B. nitrogen cycle C. Carnot cycle D. irreversible cycle
4	According to kinetic theory of gases, molecules of a gas behave like	A. Inelastic spheres B. Perfectly elastic rigid sphere C. Perfectly elastic non-rigid spheres D. Inelastic non-rigid spheres
5	The Boltzman constant has the value	A. 1.38 x 10^-23JK^-1 B. 1.28 x 10^-23JK^-1 C. 1.38 x 10^-26JK^-1 D. 1.28 x 10^-26JK^-1
6	One mole of any substance contain	A. same number of molecules B. different number of molecules C. may be same or different D. none of them
7	The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called	A. heat capacity B. specific heat capacity C. molar specific heat D. molar specific heat at constant volume
8	At O° K which of the following properties of a gas will be zero?	A. Kinetic energy B. Potential energy C. Vibrational energy D. Density
9	In all natural processes where heat flows from one system to another, there is always a net	A. decrease in entropy B. increase in entropy C. decrease or increase in entropy D. none of them
10	Sadi carnot described an ideal heat engine in	A. 1820 B. 1840 C. 1860 D. 1880

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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

Energy gas behaves like an ideal gast at

The curve representing an isothermal process is called

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

According to kinetic theory of gases, molecules of a gas behave like

In case of an ideal gas, the P.E associated with its molecule is

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

The example of irreversible process is

Absolute temperature can be calculated by

Good absorbers of heat are

A process is a reversible process, if the entropy of the system

Efficiency of carnot engine is independent of the

The motion of molecules in gases is:

In a heat engine, heat is supplied by the

We cannot utilize the heat contents of oceans and atmosphere because

If the distance between two charges is doubled, the force between them will become:

When heat is removed from the system

Pressure exerted by a gas is

The pressure of gas everywhere inside the vessel will be the same provided the gas is of

Heat travels through vacuum by

The example of reversible process is

When two objects come to common temperature, the body is said to be in:

Electromagnetic waves emitted by hot bodies are called:

In the study of thermodynamics, which gas is considered as the working substance

The absolute temperature for an ideal gas is

In the theory of dimensional analysis, heat may be properly represented by:

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

An irreversible heat flow from a hot to cold substances of a system, causes the disorder to

For making cooking utensils, which of the following pairs of properties is most suited?

Sadi carnot described an ideal heat engine in

A typical four stroke petrol engine undergoes how many successive processes in each cycle

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ECAT Physics Chapter 11 Important MCQ's

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