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Physics Fsc Part 1 Full Book Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | SI unit of entropy is |
<p>J/Kg</p> <p>J/K</p> <p>K gms-1</p> <p>JK</p> |
| 2 | No entrpy chagne is associated with |
<p>isothermal process</p> <p>Adiabatic process</p> <p>Isobaric process</p> <p>Isochoric process</p> |
| 3 | Boyle's law states that " The volume of a given mass of a gas is...................." |
<p>Directly proportional to absolute temperature</p> <p>Invesely proportional to absolute temperature</p> <p>Directly proportional to density</p> <p>Inversely proportional topressure</p> |
| 4 | K = R/NA , Where k is called. |
<p>Rydsberg constant</p> <p>Boltzmann constant</p> <p>Stefan constant</p> <p>Planck's constant</p> |
| 5 | 'R' is called |
<p>Universal constant</p> <p>Universal per molecule constant</p> <p>Universal gas constant</p> <p>All of the above</p> |
| 6 | Pressure of a gas is directly proportional to average.
|
<p> Potential energy</p> <p> </p> <p> Rotational energy</p> <p> </p> <p> Translation K.E</p> <p> </p> <p>Compressed P.E.</p> |
| 7 | Collision between gas molecules are perfectly C |
<p> Elastic</p> <p>E</p> <p> Inelastic</p> <p> </p> <p> Neither elastic nor inelastic</p> <p> </p> <p> All of these</p> <p> </p> |
| 8 | The gas molecule sare in
|
<p>Linear motion</p> <p>Random Motion </p> <p> </p> <p> Brownian motion </p> <p> </p> <p> Circulatory motion </p> <p> </p> |
| 9 | According to kinetic theory of gases, the size of the molecule is.
|
<p> Much smaller than the separation between molecule</p> <p>M</p> <p> Much larger than the separation btween molecules</p> <p> </p> <p> Botha a and b</p> <p> </p> <p> Much larger ahtn the separation between atom</p> <p> </p> |
| 10 | According to kinetic theory of gases, a a finite volume of a gas consts of very |
<p> Large numebr of molecules</p> <p> </p> <p> Small number ofmolecules</p> <p> </p> <p> Both a and b</p> <p> </p> <p> Large no of ions</p> <p>L</p> |
| 11 | Thermodynamics mostly deals with.
|
<p> Measuremetn of quantity</p> <p> </p> <p> Transfer of quantity of heat</p> <p> </p> <p> Change of state</p> <p> </p> <p> Conversion of heat to other forms of energy</p> <p> </p> |
| 12 | In an adiabatic process, there is no.
|
<p> Change in temperature</p> <p> </p> <p> Exchagne of heat</p> <p> </p> <p> Chagne is internal energy </p> <p> </p> <p>Work done</p> <p> </p> |
| 13 | What happens to internal energy of an object when its temperature.
|
<p>Decreses</p> <p> Increases</p> <p>I</p> <p> Fluctuates</p> <p> </p> <p>Remains Constant</p> <p> </p> |
| 14 | Entropy of a system in reversibel process |
<p>Fluctuates</p> <p>Increases</p> <p>Is infinite</p> <p>Decrease</p> |
| 15 | When th systme is expanded by additing heat energy, then the work done will be |
<p>Postive and on the system</p> <p>Negative and on the system</p> <p>Postive and by the system</p> <p>Negative and by the system</p> |
| 16 | When two obnects are made in thermal contact heaving same temperature then they are at. |
<p>Thermal Equilibrium</p> <p>Chemical equilibrium</p> <p>Mechanicla Equilibrium</p> <p>Physical Equilibrium</p> |
| 17 | A device which covnerts thermal eergy into mechanical energy is called. |
<p>Turbine</p> <p>Heat engine</p> <p>Carnot engine</p> <p>Rerigerator</p> |
