1st Year Physics Chapter Eleven Heat And Thermodynamics MCQs Quiz Test

If you are looking first Year Chapter Eleven Physics HEAT AND THERMODYNAMICS Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Physics Chapter 11 MCQs Quiz Test

On this website you will learn first Year Physics Unit Eleven HEAT AND THERMODYNAMICS MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of Heat and Thermodynamics.

Important Key Points You Will Learn in Chapter Eleven:

• Kinetic Theory of Gases
• Internal Energy
• Work and Heat
• The first law of Thermodynamics
• Molar Specific Heats of a Gas
• Reversible and Irreversible Processes
• The second law of Thermodynamics
• Carnot Engine and Carnot’s Theorem
• Petrol Engine
• Entropy

Q.1: At absolute temperature, the K.E of the molecules:?

1. Become minimum
2. Become maximum
3. Become zero
4. None of these

C

Q.2: Temperature is a property, which determines?

1. How much heat a body  contains
2. Whether a body will feel hot or cold to touch
3. In which direction heat will flow between two systems
4. How much total absolute energy a body has

C

Q.3: We prefer mercury  as a thermometric substance because:?

1. Over a wide range of temperature, its expansion is uniform
2. It does not stick to the thermometer glass
3. Its boiling point is high
4. All of the above

D

Q.4: The scales of temperature are based on two foxed points, which are?

1. The temperature of water at 0⁰C and 100⁰C
2. The temperature of melting ice and boiling water at atmospheric pressure
3. The temperature of ice-cold and boiling water
4. The temperature of frozen and boiling mercury

B

Q.5: What does V represent in the equation PV/2=RT?

1. The volume of n mole of gas
2. Mass of 4g of gas
3. Mass of 2gm of gas
4. The volume of 2 moles of gas

D

Q.6: In a clinical thermometer, the mercury in the capillary tube does not contract once removed from the patient because------?

1. Mercury takes a long time to contact
2. The amount of mercury use is very small
3. The capillary tube has a small constriction near the bulb
4. The capillary tube is very narrow

C

Q.7: Normal human body temperature 98.6^oF corresponds to:?

1. 37oC
2. 42oC
3. 55oC
4. 410oC

A

Q.8: The Fahrenheit and centigrade scales agree to:?

1. -40
2. 542
3. 15.5
4. -273

A

Q.9: The kinetic energy of the molecular motion appears as-------?

1. P.E
2. Heat
3. Temperature
4. None of these

C

Q.10: Heating of water under atmospheric pressure is an:?

1. Adiabatic process
2. Isothermal process
3. Isochoric process
4. Isobaric process

D

Q.11: According to pascal’s law, the pressure of a gas in a vessel is?

1. Different in different directions
2. Same in all direction
3. Same only along with opposite directions
4. Same only along with normal directions

B

Q.12: We can produce heat by?

1. Frictional process
2. Chemical processes
3. Electrical processes
4. All of the above

D

Q.13: Which one is true for internal energy?

1. It is the sum of all forms of molecular energies of a system
2. It is a state function of a system
3. It is proportional to transitional K.E of the molecules
4. All are correct

D

Q.14: At what temperature the adiabatic process is equivalent to the isothermal process?

1. O⁰ C
2. Zero Kelvin
3. Critical temperature
4. None of these

B

Q.15: Which one is not an example of the adiabatic process?

1. Rapid escape of air from a burst tyre
2. The rapid expansion of air
3. Conversion of water into ice in the refrigerator
4. Cloud formation in the atmosphere

C

Q.16: The pressure exerted by a column of mercury 76cm high and at 0oc is called-------?

1. 1 atmosphere
2. 1 newton per square meter
3. 1 pascal
4. Data is insufficient

A

Q.17: Standard condition refers to gas at:?

1. 76cm,0oc
2. 760mm,273k
3. 1 atm,273k
4. All of the above

D

Q.18: If the volume of gas is held constant and we increase its temperature then?

1. Its pressure is constant
2. Its pressure rises
3. Its pressure falls
4. All of the above

B

Q.19: If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. It is the statement of?

1. Boyle’s law
2. Charle’s law
3. Ideal gas law
4. Avagadro’s law

B

Q.20: Boyle’s law holds for ideal gases in------?

1. Isochoric process
2. Isobaric process
3. Isothermal process
4. Adiabatic process

C

Q.21: For a gas obeying Boyle’s law, if the pressure is doubled, the volume becomes:?

1. Double
2. One half
3. Four times
4. One of the fourth

B

Q.22: During which process the volume of the system remains constant------?

1. Isothermal
2. Isobaric
3. Isochoric
4. Adiabatic

C

Q.23: Which of the following properties of molecules of a gas is the same for all gases at a particular temperature?

1. Momentum
2. Mass
3. Velocity
4. Kinetic energy

D

Q.24: In which process entropy remains constant?

1. Isobaric
2. Isochoric
3. Adiabatic
4. Isothermal

C

Q.25: Which statement of the second law of thermodynamics is based on a heat engine?

1. Clausius statement
2. Kelvin statement
3. Carnot statement
4. Boyles statement

C

Q.26: Which quantity is not a thermodynamic state function?

1. Internal energy
2. Heat energy
3. Pressure
4. Volume

B

Q.27: The value of y for diatomic gas is:?

1. 1.67
2. 1.4
3. 1.3
4. None

B

Q.28: The work done in the isochoric process is-----?

1. Constant
2. Variable
3. Zero
4. Depends on the situation

C

Q.29: In the successful operation of the heat engine which condition should be met?

1. Cyclic process
2. Operated at a certain temperature difference
3. Both a and b
4. Not described

C

Q.30: The performance of a refrigerator is described as by-------?

1. Efficiency
2. Coefficient of performance
3. Both a and b
4. Not described

B