A `3000 cm^(3)` tank contains oxygen at `20^(@)C` and the gauge pressure is `2.5 xx 10^(6) Pa`. Find the mass of the oxygen in the tank. Take 1 atm `= 10^(5) Pa`.

A rigid vessel of volume 0.50m^(3) containing H_(2) at 20.5^(@)C and a pressure of 611 xx 10^(3) Pa is connected to a second rigid vessel of volume 0.75 m^(3) containing Ar at 31.2^(@)C at a pressure of 433xx10^(3) Pa. A value separating the two vessels is opened and both are cooled to a temperature of 14.5^(@)C . What is the final pressure in the vessels?

Oxygen is present in a 1 L flask at a pressure of 7.6xx10^(-10)mm Hg . Calculate the number of oxygen molecules in the flask at 0^(@)C .

If oxygen is present in 1 L flask at a pressure of 7.6xx10^(-10) mm Hg then the number of oxygen molecules in the flask at 0^(@) C will be

The manometer has a water column difference of 50 cm . If the atmospheric pressure is 10^(5) Pa, find the pressure of the gas in the container .

The atmospheric pressure in SI unit I s 1.01 xx 10^(5) Pa. Its value in CGS unit is

A steel tank contains 300 g of ammonia gas (NH_(3)) at a pressure of 1.35 xx 10^(6) Pa and a temperature of 77^(@)C . Later the temperature is 22^(@)C and the pressure is 8.7 xx 10^(5) Pa .

If the density of nitrogen is 1.25 kg/ m^(3) at a pressure of 10^(5) Pa, find the root mean square velocity of oxygen molecules.

A contair of volume 0.1m^(3) is filled with nitrogen at a temperature of 47^(@) C and a gauge pressure of 4.0xx10^(5) Pa. After ome time, due to leakage, the gauge pressure drops to 3.0xx10^(5) Pa and the temperature to 27^(@) C. The mass of nitrogen that has leaked out is about-

The solubility of oxygen gas at 25^(@)C at 1 atmosheric pressure is 1.43 xx10^(-4) mol dm^(-3) Calculate the partial pressure of oxygen if the Henry's law constant for oxygen is 0.65 xx10^(-3) mol dm^(-3) atm^(-1)

Oxygen gas having a volume of 1200 cm at 40.0^@ C and 1.01 xx 10^5 Pa expands until its temperature is 493 k and its pressure is 1.06 x 109 Pa. Find (a) the number of moles of oxygen present and (b) the final volume of the sample.