1st Year Physics Chapter 11 MCQs with Answers Heat and Thermodynamics

In order to get 1st Year Physics Chapter 11 MCQs with Answers about Heat and Thermodynamics, you are here in the right place. This chapter is about energy and the related properties of matter. So, first of all, there is the Kinetic Theory of Gases. There are some properties including the Pressure of gas, the Interpretation of Temperature, and the derivation of Gas Laws. Internal energy is the sum of all forms of molecular energies of a substance. The first law of thermodynamics is very important. There are two types of reactions i.e. Reversible and Irreversible. The next one is the working of the Heat Engine followed by the Second Law of Thermodynamics. The final concepts are Carnot’s engine, the Petrol engine, and finally the environmental crisis. So, let’s start preparing for the 1st Year Physics Chapter 11 MCQs are given below.

1st Year Physics Chapter 11 MCQs with Answers Heat and Thermodynamics

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Physics Chapter 11

1 / 20

The unit of molar-specific heat is the same as that of

Molar ideal gas constant

Temperature

Pressure

Heat

2 / 20

Intermolecular force b/w the molecules of an ideal gas are

Very weak

Weak

Very strong

Zero

3 / 20

The internal energy of a gas is directly proportional to its

Pressure

Volume

Temperature

All of these

4 / 20

The average K.E of a gas molecule at T Kelvin is

1/3 KT

2/3 KT

1/2 KT

3/2 kT

5 / 20

Land and sea breeze is due to

Conduction

Convection

Radiation

All of these

6 / 20

A mono-atomic gas has

Translational K.E only

Vibrational K.E only

Rotational K.E

All of these

7 / 20

Which quantity increases the most when a sphere is heated?

Radius

Circumference

Volume

Surface

8 / 20

Heat is transferred through the walls of a steel radiator by

Convection

Radiation

Conduction

Convection and radiation

9 / 20

If we double the velocity of gas molecules in a closed container then pressure gas is increased by

8 times

2 times

4 times

9 times

10 / 20

1st law of thermodynamics is a consequence of the conservation of

Work

Energy

Heat

All of these

11 / 20

Which quantity is not a thermodynamic state function?

Internal energy

Heat energy

Pressure

Volume

12 / 20

Which of the following properties of molecules of a gas is the same for all gases at a particular temperature?

Momentum

Mass

Velocity

Kinetic energy

13 / 20

For a gas obeying Boyle’s law, if the pressure is doubled, the volume becomes

Double

One-half

Four times

One fourth

14 / 20

Boyle’s law holds for ideal gases in

Isochoric processes

Isobaric processes

Isothermal processes

Adiabatic process

15 / 20

If the volume of a gas is held constant and we increase its temperature then

Its pressure is constant

Its pressure raises

Its pressure falls

Any of above

16 / 20

If the volume of a gas is held constant and we increase its temperature then

Its pressure is constant

Its pressure raises

Its pressure falls

Any of above

17 / 20

Which one is true for internal energy?

It is sum of all forms of molecular energies of a system

It is a state function of a system

It is proportional to transnational K.E of the molecules

All are correct

18 / 20

We can produce heat by

Frictional process

Chemical processes

Electrical processes

All of the above

19 / 20

The heating of water under atmospheric pressure is an

Adiabatic process

Isothermal process

Isochoric process

Isobaric process

20 / 20

The scales of temperature are based on two fixed points, which are

The temperatures of water at 0°C and 100°C

The temperature of melting ice and boiling water at atmospheric pressure

The temperatures of ice-cold and boiling water

The temperatures of frozen and boiling mercury

Your score is

1st Year Physics Chapter 11 MCQs with Answers Heat and Thermodynamics

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