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Physics Fsc Part 1 Chapter 6 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | A system does 600 J of work and at the same time has its internal energy increased by 320 J. How much heat has been supplied. |
<p>920 J</p> <p>280 J</p> <p>600 J</p> <p>200 J</p> |
| 2 | The chagne in inernal energy is defined as. |
<p>Q- W</p> <p>Q- T</p> <p>Q+ P</p> <p>Q - P</p> |
| 3 | In all natural prcoessees where heat flow from one system to another there is always a net increase in |
<p>Pressure</p> <p>Entropy</p> <p>Work</p> <p>Volume</p> |
| 4 | In reversible cyclic process the change in entropy of system. |
<p>Remains constant</p> <p>Increase</p> <p>Decrease</p> <p>Becomes zero</p> |
| 5 | When hot and cold water are mixed the entropy |
<p>Decrease</p> <p>Increase</p> <p>Remains constant</p> <p>Zero</p> |
| 6 | Chagne in entropy is maximum when temperature of source is that............of sink |
<p>Greater than</p> <p>Less than </p> <p>Equal to</p> <p>Zero</p> |
| 7 | No entropy change is associated with |
<p>Isothermal process</p> <p>Adiabatic process</p> <p>Isobaric process</p> <p>Isochoric process</p> |
| 8 | SI unit of entropy is |
<p>J/Kg</p> <p>J/K</p> <p>K gms-1</p> <p>JK</p> |
| 9 | No entrpy chagne is associated with |
<p>isothermal process</p> <p>Adiabatic process</p> <p>Isobaric process</p> <p>Isochoric process</p> |
| 10 | 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> |
| 11 | K = R/NA , Where k is called. |
<p>Rydsberg constant</p> <p>Boltzmann constant</p> <p>Stefan constant</p> <p>Planck's constant</p> |
| 12 | 'R' is called |
<p>Universal constant</p> <p>Universal per molecule constant</p> <p>Universal gas constant</p> <p>All of the above</p> |
| 13 | 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> |
| 14 | 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> |
| 15 | 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> |
| 16 | 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> |
| 17 | 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> |
