Advertisements
Advertisements
प्रश्न
Name or state the following:
The standard pressure of a gas in cm. of mercury corresponding to one atmospheric pressure.
Advertisements
उत्तर
76 cm.
APPEARS IN
संबंधित प्रश्न
Estimate the average thermal energy of a helium atom at the temperature of 10 million Kelvin (the typical core temperature in the case of a star).
50 m3 of saturated vapour is cooled down from 30°C to 20°C. Find the mass of the water condensed. The absolute humidity of saturated water vapour is 30 g m−3 at 30°C and 16 g m−3 at 20°C.
What is diffusion? Give an example to illustrate it.
Give reasons for the following:
Gas fills the vessel completely in which it is kept.
Fill in the blanks:
If the temperature is reduced to half, ………….. would also reduce to half.
A gas occupies 500 cm3 at a normal temperature. At what temperature will the volume of the gas be reduced by 20% of its original volume, the pressure is constant?
Give reason for the following:
Temperature remaining constant the product of the vol. & the press, of a given mass of dry gas is a constant.
Give reason for the following:
Volumes of gases are converted into s.t.p. conditions and then compared.
Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will ______.
At room temperature, a diatomic gas is found to have an r.m.s. speed of 1930 ms-1. The gas is ______.
