ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

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

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

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ECAT Physics Chapter 11 Heat & Thermodynamics

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

Which of the following does not have the same units:

Question # 5

If N is the total number of molecules and V is the volume of the container, then the expression for the pressure of gas is

Question # 6

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

Question # 7

When the temperature of source and sink of a heat engine become equal entropy change will be

Question # 8

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Question # 9

We can express the work in term of

Question # 10

Absolute temperature can be calculated by

Question # 11

The unit of thermodynamical scale is

Question # 12

In a heat engine, heat is supplied by the

Question # 13

The curve representing an adiabatic process is called

Question # 14

The basis to define a temperature scale that is independent of material properties is provided by

Question # 15

One kilogram of different substances contain

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Sr.# Question Answer
1 The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :
A. 1.7 x 103J
B. 10.2 x 103J
C. 3..4 x 103J
D. 6.8 x 103J
2 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
3 When heat is removed from the system
A. negative
B. positive
C. zero
D. any one of them
4 At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:
A. Double
B. Remains constant
C. Half
D. None of these
5 Real gases strictly obey gas law at:
A. High pressure and low temperatures
B. Low pressures and high temperatures
C. High pressures and high temperatures
D. None of these
6 Maximum density of H2O is at the temperature
A. 32°F
B. 39.2°F
C. 42°F
D. 4°F
7 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
8 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
A. Clausius statement of second law
B. Kelvin'sstatement of second law
C. Clausius statement of first law
D. Kelvin's statement of first law
9 First law of thermodynamics is consequence of conservation of
A. Work
B. Energy
C. Heat
D. All of these
10 Triple point of water is
A. 273.16°F
B. 372.16K
C. 273.16°F
D. 273.16

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