ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

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

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Abdullah Baloch 28 - Jul - 2024 06 Min 01 Sec 60/60
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Vertex Gaming 16 - Jul - 2024 01 Min 06 Sec 55/60
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Ali Kumail 29 - May - 2024 01 Min 41 Sec 55/60
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Muhammad Abdur.Rahman Khan 28 - Aug - 2024 02 Min 51 Sec 55/60
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Mian House 31 - May - 2024 06 Min 26 Sec 55/60
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Muhammad Hashim 02 - Jun - 2024 02 Min 29 Sec 50/60
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Mian amar Mustafa 09 - Feb - 2024 03 Min 05 Sec 50/60
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Atif Murad 11 - Mar - 2024 01 Min 46 Sec 45/60
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Ahmad Arshad 10 - Jan - 2024 03 Min 11 Sec 45/60
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umme roman khan 14 - Jan - 2024 03 Min 41 Sec 45/60
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HUSSAIN Mudasser 24 - Jun - 2024 02 Min 24 Sec 40/60
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Ayan Shuaib 30 - Jan - 2024 03 Min 08 Sec 40/60
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Astha 01 - Feb - 2024 06 Min 49 Sec 40/60
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urooj urooj 17 - Jul - 2024 02 Min 12 Sec 35/60
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Kashif Siddiqui 14 - Sep - 2024 03 Min 17 Sec 35/60

ECAT Class 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	One kilogram of different substances contain	A. same number of molecules B. different number of molecules C. may be same or different D. none of them
3	Average KE of a gas molecule has:	A. Direct relation with absolute temperature and inverse relation with pressure B. Direction relation with both absolute temperature and pressure C. Inverse relation with both absolute temperature and pressure D. None of these
4	The rate of change of momentum of a molecule is equal to:	A. Pressure B. Work C. Density D. Force
5	When the temperature of source and sink of a heat engine become equal entropy change will be	A. Zero B. Max C. Min D. -ve
6	The disorder in the system increases due to the	A. removal of heat B. addition of heat C. removal or addition of heat D. none of them
7	Adiabatic change occurs when the gas	A. expands B. compressed C. expands or compressed D. expands or compressed rapidly
8	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
9	Efficiency of carnot engine is independent of the	A. temperature of sink B. temperature of source C. nature of the working substances D. none of them
10	In a heat engine, heat is supplied by the	A. cold reservoir B. sink C. hot reservoir D. none of them

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ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

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

ECAT Physics Chapter 11 Heat & Thermodynamics

Sadi carnot described an ideal heat engine in

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

Maximum density of H2O is at the temperature

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

Internal energy is the sum of all the forms of

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

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

No spark plug is needed in

In an adiabatic expansion, the temperature of the gas

Energy gas behaves like an ideal gast at

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

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

An isochoric process is one which take place at

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

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

ECAT Class Physics Chapter 11 Important MCQ's

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Maximum density of H₂O is at the temperature

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