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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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	If R is gas constant for 1 gram mole, C_pand C_vare specific heat for a solid then	A. C_p- C_v= R B. C_p- C_{v < R} C. C_p- C_{v = 0} D. C_p- C_{v > R}
2	Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is	A. 1 : 2 B. 2 : 3 C. 3 : 4 D. 8 : 9
3	Which of the following is not thermo dynamical function?	A. Enthalpy B. Work done C. Gibb's energy D. Internal energy
4	Melting point of ice	A. Increases with increasing pressure B. Decreases with increasing pressure C. Is independent of pressure D. Is proportional to pressure
5	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
6	The absolute temperature for an ideal gas is	A. directly proportional to the rotational K.E of gas molecules B. directly proportional to the vibrational K.E of gas molecules C. directly proportional to the average translational K.E.of gas molecules D. directly proportional to the P.E. of gas molecules
7	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	A. A greater than than of B B. A is equal to that of B C. A is less than that of B D. A is twice the pressure of B
8	A process in which no heat enters or leaves the system is called	A. isochoric process B. isothermal process C. adiabatic process D. none of them
9	Pressure exerted by a gas is	A. Independent of density of the gas B. Inversely proportional to the density of the gas C. Directly proportional to the square of the density of the gas D. Directly proportional to the density of the gas
10	In the theory of dimensional analysis, heat may be properly represented by:	A. ML²T^-2 B. MT^-2 C. ML^-1T^-1 D. None of these

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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

In an adiabatic process the work is done at the expense of the

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

At O° K which of the following properties of a gas will be zero?

The Boltzman constant has the value

First law of thermodynamic is special case of

The curve representing an adiabatic process is called

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

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

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:

Which of the following is not an assumption of kinetic energy

No spark plug is needed in

While deriving the equation for pressure of a gas we consider the

Internal energy is the sum of all the forms of

Average KE of a gas molecule has:

Electromagnetic waves emitted by hot bodies are called:

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

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

At absolute temperature, the kinetic energy of the molecules

Real gases strictly obey gas law at:

The heat required to raise the temperature of one mole of the substance through 1 K is called

The efficiency of diesel engine is

During the whole carnot cycle

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

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

Efficiency of carnot engine is independent of the

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

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

Pressure exerted by a gas is

The ideal gas law is

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

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Top Scorers Of ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

ECAT Physics Chapter 11 Important MCQ's

Test Questions

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: