The coefficient of linear expansion of a crystal in one direction is and that in every direction perpendicular to it is . The coefficient of cubical expansion is :
None of these
A pendulum clock keeps correct time at 0o C. If the coefficient of linear expansion is, then what will be the loss in time per day, when the temperature rises by toC ?
When the temperature of a gas filled in a closed vessel is increased by 1o C, its pressure increases by 0.4 %. The initial temperature of the gas was
25o C
250 K
250o C
25 K
At what temperature, volume of an ideal gas at 0o C becomes triple :
546o C
382o C
719o C
246o C
The temperature of a thin rod is slightly increased by If the coefficient of linear expansion be , then its moment of inertia I about the perpendicular bisector will change by :
In thermal equilibrium, the average velocity of a gas molecule is
proportional to T3
proportional to T2
proportional to
zero
The kinetic energy of one gm - molecule of a gas at normal temperature and pressure is (R = 8.31 J mol-1 K-1 )
0.56 x 104 J
1.3 x 102 J
2.7 x 103 J
3.4 x 103 J
When temperature of an ideal gas is increased from 27o C to 227o C, its r.m.s speed is changed from 400m/s to vs . The vs is :
516 m/s
650 m/s
810 m/s
546 m/s
A gas at a temperature of 250 K is contained in a closed vessel. If the gas is heated through 1 K, then percentage increase in its pressure is
0.1 %
0.2 %
0.3 %
0.4 %
The coefficient of apparent expansion of a liquid in a copper vessel is C and in a silver vessel is S. The coefficient of volume expansion is . The coefficient of linear expansion of silver will be :