Gaseous State Questions

If Z is a compressibility factor, van der Waals equation at low pressure can be written as

Equal masses of H2, O2 and methane have been taken in a container of volume V at temperature 27oC in identical conditions. The ratio of the volumes of gases H2 : O2 : methane would be...

A 40 ml of a mixture of H2 and O2 at 18oC and 1 atm pressure was sparked so that the formation of water was complete. The remaining pure gas had a volume of 10 ml at 18oC and 1 atm pressure. If the re...

At Boyle′s temperature, the value of compressibility factor Z = (PVm / RT = Vreal/Videal) has a value of 1, over a wide range of pressure. This is due to the fact that in the van der Waal′...

A mixture of gases contains H2 and O2 gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?

Which of the following combination will produce H2 gas?

A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5atm from an initial volume of 2.50 L to a final volume of 4.50L. The change in internal energy &#871...

Given van der Waals constant for NH3, H2 and CO2 are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?

The correction factor 'a' to the ideal gas equation corresponds to

The pair(s) of ions where BOTH the ions are precipitated upon passing H2S gas in presence of dilute HCl, is(are)

A reversible cyclic process for an ideal gas is shown below. Here, P , V and T are pressure , Volume and temperature , respectively. The thermodynamic parameters q, w, H and U are heat, work, enthalpy...

Maximum deviation from ideal gas is expected from :

For gaseous state, if most probable speed is denoted by C*, average speed by and mean square speed by C, then for a large number of molecules the ratios of these speeds are :...

The compressibility factor for a real gas at highpressure is :-

50 mL of each gas A and of gas B takes 200 and 150 s respectively for effusing through a pin hole under the similar conditions. If molecular mass of gas B is 36, the molecular mass of gas A wil be...

For real gases van der Waals equation is written as (V - nb) = nRT where ′a′ and ′b′ are van der Waals constants. I. O2, CO2, H2 and He II. CH4, O2 and H2 The gases given in se...

A certain gas takes three times as long to effuse out as helium. Its molecular mass will be:

50 mL of each gas A and of gas B takes 200 and 150 seconds respectively for effusing through a pinhole under the similar conditions. If molecular mass of gas B is 36, the molecular mass of gas A will ...

For one mole of a van der Waals gas when b = 0 and T = 300 K, the PV vs. 1/V plot is shown below. The value of the van der Waals constant a (atm.litre2mol-2) is...

A gaseous mixture was prepared by takig equal moles of CO and N2. If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen (N2) in the mixture is...