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

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Malik Farhan 26 - Jan - 2019 08 Min 09 Sec 80/120
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Waleed Ahmed 24 - Feb - 2023 05 Min 43 Sec 50/120
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Maliha afridi 25 - Oct - 2018 11 Min 47 Sec 50/120
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Malik Farhan 23 - May - 2021 07 Min 14 Sec 35/120
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Farhan Sial 30 - Aug - 2018 09 Min 36 Sec 30/120
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Ahmed Ali Shah 07 - Nov - 2023 01 Min 01 Sec 25/120
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Mohsin rajput Rajput 21 - Sep - 2025 06 Min 38 Sec 9/30
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Frankie 09 - Sep - 2022 01 Min 29 Sec 0/120

ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	Pressure may be define as _______ per second per unit area:	A. Change in force B. Change in momentum C. Change in energy D. Work done
2	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
3	Amount of heat required to raise the temperature of a body through 1 K is called its	A. Specific heat B. Water equivalent C. Thermal capacity D. Entropy
4	In an adiabatic expansion, the temperature of the gas	A. increases B. becomes zero C. decreases D. decreases rapidly
5	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
6	If the distance between two charges is doubled, the force between them will become:	A. Double B. Half C. Three times D. One fourth
7	The pressure exerted by the gas is	A. directly proportional to the P.E B. inversely proportional to the P.E C. inversely proportional to the K.E D. directly proportional to the K.E
8	When two objects are rubbed together, their internal energy	A. remains same B. decreases C. remains the same then decreases D. increases
9	Rice takes longest to cook	A. In a submarine 100 m below the surface of the sea B. At sea level C. At Murree D. At Mount Everest
10	Adiabatic change occurs when the gas	A. expands B. compressed C. expands or compressed D. expands or compressed rapidly

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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

Hotness and coldness of an object is represented in terms:

The pressure exerted by the gas is

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

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

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

Specific heat at constant pressure is greater than the specific heat at constant volume because

The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is

In the formula P = N0KT, N0denotes:

One mole of any substance contain

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

Which of the following is not thermo dynamical function?

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

The length of a metallic rod is 5 meter at 100°C. The coefficient of cubical expansion of the metal will be

Good absorbers of heat are

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

We cannot utilize the heat contents of oceans and atmosphere because

Efficiency of carnot engine is independent of the

It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of

Triple point of water is

The internal energy of an ideal gas system is generally the

Pressure exerted by a gas is

If R is gas constant for 1 gram mole, Cpand Cvare specific heat for a solid then

First law of thermodynamics is consequence of conservation of

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

The concept of entropy was introduced into the study of thermodynamics in

Rice takes longest to cook

The percentage of available heat energy converted into work by a petrol engine is roughly

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

At constant temperature, if the density of the gas is increased, its pressure will:

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

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ECAT Physics Chapter 11 Important MCQ's

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In the formula P = N₀KT, N₀denotes:

If R is gas constant for 1 gram mole, C_pand C_vare specific heat for a solid then