19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
If P, V, M, T and R are the symbols of pressure, volume, molecular weight, temperature and gas constant respectively. What is the equation of density of ideal gas? (MPPMT 2010)
In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity 1 dm3 at 273 K? (KCET 2010)
A gaseous mixture contains 2 moles of A and 3 moles of B. Total pressure of the mixture is 5 atm. The partial pressures of A and B are respectively. (AFMC 2010)
2 g of hydrogen diffuse from a container in 10 min. How many gram of oxygen would diffuse through the same container in the same time under similar conditions? (Manipal 2010)
At identical temperature and pressure, the rate of diffusion of hydrogen gas is 3 3 times that of a hydrocarbon having molecular formula
n n C H What is the value of n? (WB JEE 2010)
Average KE of CO2 at 27°C is E. The average kinetic energy of N2 at the same temperature will be (BVP 2010)
At what temperature, the RMS velocity of gas present at 50°C will be doubled? (OJEE 2010)
Given, RMS velocity of hydrogen at 300 K is 1.9 × 103 m/s. The RMS velocity of oxygen at 1200 K will be (OJEE 2010)
If the temperature changes from 27°C to 127°c relative percentage change in RMS velocity is (OJEE 2010)
a and b are van der Waals constants for gases. Chlorine is more easily liquefied than ethane because (KCET 2011)
The molecular velocity of any gas is (WB JEE 2011)
When r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion (rA/rB) of two gases A and B, is given as (WB JEE 2011)
Three different gases X, F and Z of molecular masses 2, 16 and 64 were enclosed in a vessel at constant temperature till equilibrium is reached. Which of the following Statement is correct? (Kerala CEE 2011)
Equal weights of CH4 and H2 are mixed in a container at 25°C. Fraction of total pressure exerted by methane is (DUMET 2011)
By what factor does the average velocity of a gaseous molecule increases, when the temperature (in kelvin) is doubled? (CBSE AIPMT 2011)
The compressibility factor for a real gas at high pressure is (OJEE 2012) (a) RT Pb
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)
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)
At what temperature will the RMS velocity of SO2 be the same as that of O2 at 303K? (KCET 2013)
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
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)
Density of carbon monoxide is minimum at (KCET 2014)
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…
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 …