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1.
A thermally insulated vessel contains an ideal gas of molecular mass 
and ratio of specific heats 
. It is moving with speed 
and is suddenly brought to rest. Assuming no heat is lost to the surroundings, its temperature increases by
and ratio of specific heats . It is moving with speed and is suddenly brought to rest. Assuming no heat is lost to the surroundings, its temperature increases by
2.
When you make ice cubes, the entropy of water
3.
The phenomenon of sound propagation in air is
4.
An ideal expands isothermally from a volume 
and then compressed to original volume 
adiabatically. Initial pressure is 
and final pressure is 
The total work done is 
. Then
and then compressed to original volume adiabatically. Initial pressure is and final pressure is The total work done is . Then
5.
A gas expands with temperature according to the relation 
. Calculate work done when the temperature changes by 60K?
. Calculate work done when the temperature changes by 60K?
6.
A gas undergoes a change of state during which 
of heat is supplied to it and it does 
of work. The system is brought back to its original state through a process during which of heat is released by the gas. The work done by the gas in the second process is
of heat is supplied to it and it does of work. The system is brought back to its original state through a process during which of heat is released by the gas. The work done by the gas in the second process is
7.
If a system undergoes contraction of volume then the work done by the system will be
8.
A gas is suddenly expanded such that its final volume becomes 3 times its initial volume. If the specific heat at constant volume of the gas is 2
, then the ratio of initial to final pressure is nearly equal to
, then the ratio of initial to final pressure is nearly equal to
9.
The coefficient of performance of a refrigerator work between 
and 
is
and is
10.
In isothermic process, which statement is wrong