1.
A solid whose volume does not change with temperature floats in liquid. For two different temperatures, the fractions of volume of solid remain submerged. What is the coefficient of volume expansion of liquid?
2.
At temperature the speed of helium molecules is the same as speed of hydrogen molecules at normal temperature and pressure. The value of is
3.
The pressure and volume of saturated water vapour are and respectively. It is compressed isothermally thereby volume becomes the final pressure will be
4.
The kinetic energy, due to translation motion, of most of the molecules of an ideal gas at absolute temperature is
5.
The temperature of argon, kept in a vessel, is raised by at a constant volume. The total heat supplied to the gas is a combination of translation and rotational energies. Their respective shares are
6.
Boyle's law holds for an ideal gas during
7.
One mole of an ideal gas requires heat to raise the temperature by when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by the same the heat required is
(Given the gas constant )
8.
The temperature gradient in the earth's crust is 32 k and the mean conductivity of earth is 0.008 cal. Considering earth to be a sphere of radius 6000 km loss of heat by earth everyday is about
9.
The speed of the molecules of a gas in a vessel is If half of the gas leaks out, at constant temperature, the speed of the remaining molecules will be
10.
Two spheres made of same substance have diameters in the ratio. Their thermal capacities are in the ratio of