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	In the reverse process, the working substance passes through the same stages as in the direct process and	A. thermal effects at each stage are exactly reversed B. mechanical effects at each stage are exactly reversed C. thermal and mechanical effects at each stage remain the same D. thermal and mechanical effects at each stage are exactly reversed
2	If water in a closed bottle is taken up to the moon and opened, the water gets	A. Freeze B. Boiled C. Dissociated into O₂and H₂ D. Evaporated
3	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
4	R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes	A. 2V B. 3V C. 0.5V D. V
5	A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:	A. Ideal gas B. Inert gas C. Real gas D. None of these
6	Which of the following is not an example of adiabatic process	A. the rapid escape of air from a burst type B. the rapid expansion and compression of air through which a sound wave is passing C. cloud formation in the atmosphere D. none of them
7	When two objects come to common temperature, the body is said to be in:	A. Static equilibrium B. Dynamic equilibrium C. Thermal equilibrium D. None of these
8	The internal energy of an ideal gas system is generally the	A. translational K.E of molecules B. vibrational K.E of molecules C. rotational K.E of molecules D. all of them
9	Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called	A. heat capacity B. specific heat capacity C. specific heat at constant volume D. specific heat at constant pressure
10	The pressure of gas everywhere inside the vessel will be the same provided the gas is of	A. Non-uniform density B. uniform density C. high density D. low density

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

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

The number of translation degress of freedom for a diatomic gas is

If 42 J heat is transferred to the system and the work done by the system is 32 J then what will be the change in internal energy

Which quantity is important in stating the entropy of the system

Efficiency of carnot engine is independent of the

Triple point of water is

In an adiabatic expansion, the temperature of the gas

The bicycle pump provides a good example of

An isochoric process is one which take place at

Rice takes longest to cook

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

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

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

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

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

Melting point of ice

Generally a temperature scale is established by using certain physical properties of a material which varies

The value of E0in coulomb's law is:

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

We can express the work in term of

Brownian motion increases due to

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

The behaviour of gases is well accounted by the kinetic theory based on

The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at

If an amount of heat enters the system it could

Gas constant per molecule is called:

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

At absolute temperature, the kinetic energy of the molecules

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

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ECAT Physics Chapter 11 Important MCQ's

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The value of E₀in coulomb's law is:

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