Chemistry Question Bank

Which of the following represent Gay Lussac’s law? I. P constant T II. P T P T III. P V P V Choose the correct option.

A relationship is obtained between density and pressure of a gas as follows

A balloon is filled with hydrogen at room temperature. It will burst, if pressure exceeds 0.2 bar. If at 1 bar pressure the gas occupied 2.27 L volume, up to what volume can be balloon be expanded?

What will be the minimum pressure required to compress 2 Litre of gas at 1 bar to 1 litre at 25oC?

The volume of ammonia obtained by the combination of 10 mL of N2 and 30 mL of H2 is :

Gay-Lussac’s law of combining volume is applicable for those gases which on mixing :

A gas is initially at 1 atm pressure. To compress it to 1/4 th of its initial volume, assuming temperature to be constant pressure to be applied is

A 10.0 L flask contains 64 g of oxygen at 27°C. (Assume O2 gas is behaving ideally). The pressure inside the flask in bar is (Given R = 0.0831 L bar K-1 mol-1) (NEET 2022)

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture (NEET 2022)

The volume occupied by 1.8 g of water vapour at 374°C and 1 bar pressure will be [Use R = 0.083 bar L K-1 mol-1] (NEET (Odisha) 2019)

Assertion: The graph between Pv/s V is a straight line. Reason: For adiabatic process, P 1/V (AIIMS 2019)

A 100 mL flask contained H 2 at 200 torr and a 200 M flask contained He at 100 torr. The two flasks were then connected so that each gas filled their combined volume Assume, no change in temperature, total pressure is…

Two closed bulbs of equal volume (V) containing an ideal gas initially at pressure Pi and temperature T1 are connected through a narrow tube of negligible volume as shown in the figure below. The temperature of one of…

The intermolecular interaction that is dependent on the inverse cube of distance between the molecules is: (WB JEE 2015)

The RMS speed of helium in ms-1 (atomic mass = 4.0 g mol-1) at 400 K is (EAMCET 2014)

Two gases X (molecular weight MX) and Y (molecular weight MY) (MY > MX) are at the same temperature, T in two different Containers. Their root mean square velocities are CX and CY respectively. If the average kinetic …

If average velocity of a sample of gas molecules at 300 K is 5 cm s-1, what is RMS velocity of same sample of gas molecules at the same temperature? (Given, : : u v 1 : 1.224 : 1.127) (most probable velocity), u(RMS…

Density of carbon monoxide is minimum at (KCET 2014)

Equal mass 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 : CH4 would be (CBSE AIPMT 2014)

If Z is a compressibility factor, Van der Waals equation at low pressure can be written as: (WB JEE 2014) (a) a Z =1- VRT (b) Pb Z =1- RT (c) Pb Z =1+ RT (d) RT Z =1+ Pb

At what temperature will the RMS velocity of SO2 be the same as that of O2 at 303K? (KCET 2013)

For gaseous state, if most probable speed is denoted by C*, average speed by C and root mean square speed by C, then for a large number of molecules, the ratios of these speeds are (WB JEE 2013)

One mole of oxygen at 273 K and one mole of sulphur dioxide at 546 K are taken in two separate containers, then (UPCPMT 2012)

The compressibility factor for a real gas at high pressure is (OJEE 2012) (a) RT Pb

By what factor does the average velocity of a gaseous molecule increases, when the temperature (in kelvin) is doubled? (CBSE AIPMT 2011)