A piston of cross-section area A is fitted in cylinder in which gas of volume V at pressure P is enclosed. Gas obeys Boyle's law, the angular frequency if piston is displaced slightly, is :
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
The temperature of H2 at which the r.m.s. velocity of its molecules is seven times the r.m.s. velocity of the molecules of nitrogen at 300 K will be:
2500 K
1800 K
1850 K
1050 K
A pendulum clock consists of an iron rod connected to a small, heavy bob. If it is designed to keep correct time at 20o C, how fast or slow will it go in 24 h at 40o C.
10.4 s
10.72 s
10.68 s
10.9 s
The average kinetic energy of a gas molecule at 27o C is 6.21 x 10-21 J. Its average kinetic energy at 227o C will be
R.M.S velocity of a molecule is C at pressure P. If pressure is increased two times, then r.m.s velocity becomes
0.5 C
C
2 C
3 C
