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Physics Fsc Part 1 Full Book Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | KE of molecules of an ideal gas at absolutely zero will be |
<p>0</p> <p>Infinite</p> <p>Very High</p> <p>Below zero</p> |
| 2 | Internal energy is similar to the |
<p>Vibrational K.E.</p> <p>Gravitational P.E.</p> <p>K.E.</p> <p>All of these</p> |
| 3 | Internal energy of a substance, is directly proportional to |
<p>T</p> <p>V</p> <p>W</p> <p>P</p> |
| 4 | The sum of all forms of molecular energies of substance is termed as |
<p>Kinetic energy</p> <p>Potential energy</p> <p>Internal energy</p> <p>Heat energy</p> |
| 5 | The process in which no heat enters or leaves the system is known as. |
<p>Isothermal process</p> <p>Adiabatic process</p> <p>Isochoric process</p> <p>Isobaric process</p> |
| 6 | What one is not an isothermal change. |
<p>Melting of solid</p> <p>Bioling of liquid</p> <p>Bursting of bicycle tyre</p> <p>Slow expansion of gas</p> |
| 7 | The process which is carried out at constant temperature is called. |
<p>Adiabatic process</p> <p>Isothermal process</p> <p>Isochoic process</p> <p>Isobaric process</p> |
| 8 | Adiabatic change occurs hen the gas expands or compressed. |
<p>Rapidly</p> <p>Slowly</p> <p>Gradually</p> <p>Moderately</p> |
| 9 | Which is not exmple of ddiablatic process. |
<p>Rapid escape of air from burst tyre</p> <p>Rapid expansion of air</p> <p>Conversion of water into ice in refrigerator</p> <p>Cloud formation in the atmosphere</p> |
| 10 | An addition of 400 J of heat casues the increase in internal energy of system is equal to 300 J, then work done will be |
<p>100 J</p> <p>200J</p> <p>300 J</p> <p>400 J</p> |
| 11 | 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> |
| 12 | The chagne in inernal energy is defined as. |
<p>Q- W</p> <p>Q- T</p> <p>Q+ P</p> <p>Q - P</p> |
| 13 | 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> |
| 14 | In reversible cyclic process the change in entropy of system. |
<p>Remains constant</p> <p>Increase</p> <p>Decrease</p> <p>Becomes zero</p> |
| 15 | When hot and cold water are mixed the entropy |
<p>Decrease</p> <p>Increase</p> <p>Remains constant</p> <p>Zero</p> |
| 16 | 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> |
| 17 | No entropy change is associated with |
<p>Isothermal process</p> <p>Adiabatic process</p> <p>Isobaric process</p> <p>Isochoric process</p> |
