Heat and Thermodynamics Mcqs

Our collections of Multiple choice questions and answers focuses on study of Heat and Thermodynamics in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Heat and Thermodynamics in Physics comprehensively.

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7. Heat and Thermodynamics Mcqs

1. According to Pascals law the pressure of gas in a vessel is

Different in different direction

Same in all direction

Same only along opposite directions

Same only along normal directions

2. Adiabatic process is also called

Heat exchange process

Heating process

Isentropic process

All of the above

3. At constant temperature the graph between V and 1/P is

Hyperbola

Parabola

A curve of any shape

A straight lime

3NaT/2R

2NaT/3

3RT/2Na

3Na/2RT

K = RNa

K = R/Na

K = Na/Ra

K = nRNa

6. Boyles law helds for ideal gases in

Isochoric processes

Isobaric processes

Isothermal processes

MLT

ML-1T-1

ML-1T-2

ML-2T-2

Double

One half

Four times

One fourth

9. For the successful operation of Heat engine which condition should be met.

Cyclic process

Operated at certain temperature difference

Both (a) and (b)

None of these

10. Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their

Volume

Pressure

Absolute temperature

Time

Boyles law

Charles law

Ideal gas law

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

Its pressure is constant

Its pressure rises

Its pressure falls

Any of above

13. In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because

Mercury takes a long time to contract

The amount of mercury use is very small

The capillary tube has a small constriction near the bulb

The capillary tube is very narrow

Isothermal

Isochoric

Isobaric

Isentropic

Isobaric

Isochoric