Gaseous State
34 questions in this chapter.
Study loop for Gaseous State
1. Practise the PYQsPrevious-year questions, with answers
Gaseous State – General
ABC26PH0707 · For the distribution of molecular velocities of gases, identify the correct order from following (where vmp, vav, vrms are the most… · 2001-2022
ABC26PH0708 · The molar heat capacity at constant volume of a colourless gas is found to be 25 J mol-1 K-1 at room temperature. The gas must be · 2001-2022
ABC26PH0449 · One mole each of H2CO3, and Na2CO3 are added to water to prepare one litre solution. The pH of the solution is. · 2005-2021
ABC26PH0096 · Two alpha particles having speeds S1 and S2 have kinetic energies 1 and 2 MeV respectively; the relationship between S1 and S2 is : · DEC 2011
ABC26PH0710 · Given that the most probable speed of oxygen gas is 1000 m s-1, the mean/average speed (m s-1) under the same conditions is: · 2001-2022
ABC26PH0097 · Identify the speed distribution functions of Ne, Ar, and Kr with the curves in the figure below · DEC 2014
ABC26PH0098 · The standard deviation of speed (sigma c) for Maxwell's distribution satisfies the relation · DEC 2015
ABC26PH0452 · For 1 mole of a monoatomic ideal gas, the relation between pressure (p), volume (V) and average molecular kinetic energy (varepsilon) is · 2005-2021
ABC26PH0712 · Consider two identical containers, one with 1 mole of H2 and the other with 1 mole of He. If the root-mean square (RMS) velocities of the… · 2001-2022
ABC26PH0453 · A 2 L vessel containing 2 g of H2 gas at 27°C is connected to a 2 L vessel containing 176 g of CO2 gas at 27°C. Assuming ideal behaviour of… · 2005-2021
ABC26PH0713 · 7. (i) Write the expression for the vibrational contribution to the total energy of CH4(g) at 500 K. All the vibrational modes are active… · 2001-2022 self-practice
ABC26PH0100 · Entropy of a perfect gas is · DEC 2018
ABC26PH0454 · At a given temperature and pressure, the ratio of the average speed of hydrogen gas to that of helium gas is approximately ____ · 2005-2021 self-practice
ABC26PH0714 · Based on the principle of equipartition of energy, the molar heat capacity of CO2 at constant volume Cv,m is: · 2001-2022 self-practice
ABC26PH0101 · The molar residual entropy (in J/K) for solid OCS is close to · DEC 2019
ABC26PH0715 · The Maxwell probability distribution of molecular speeds for a gas is: F(v)dv = 4 pi v2 (m/(2 pi kT))3/2exp (-(mv2)/2kT)dv where 'v' is the… · 2001-2022 self-practice
ABC26PH0102 · A monoatomic perfect gas undergoes expansion from (p1, V1) to (p2, V2) under isothermal or adiabatic conditions. The pressure of the gas… · DEC 2019
ABC26PH0716 · The average speed of H2, N2 and O2 gas molecules is in the order · 2001-2022 self-practice
ABC26PH0717 · According to the equipartition principle of energy, the molar heat capacity at constant volume for CO2(g), SO2(g) and H2O(g) follows the… · 2001-2022 self-practice
ABC26PH0718 · According to the equipartition principle, the predicted high temperature limiting value of the molar heat capacity at constant volume for… · 2001-2022
ABC26PH0719 · In the gas phase, the ratio of excluded volume to molecular volume for a spherical molecule is ____ · 2001-2022 self-practice
ABC26PH0720 · In an ideal monoatomic gas, the speed of sound is given by √(5RT/3M). If the speed of sound in argon at 25^ is 1245 km h-1, the root mean… · 2001-2022 self-practice
ABC26PH0721 · The relationship between the van der Waals 'b' coefficient of N2 and O2 is · 2001-2022
ABC26PH0722 · From the kinetic theory of gases, the ratio of most probable speed (Cmp) to root mean square speed (Crms) is · 2001-2022
ABC26PH0723 · Cu(s) + 4H^+(aq) + 2NO3^-(aq) → 2NO2(g) + Cu2+(aq) + 2H2O(l) In the above reaction at 1 atm and 298 K, if 6.36 g of copper is used… · 2001-2022 self-practice
ABC26PH0725 · Assuming ideal gas behavior, the density of O2 gas at 300 K and 1.0 atm is ____ g L-1 (rounded up to two decimal places). [R = 0.082 L atm… · 2001-2022 self-practice
ABC26PH0726 · According to the kinetic theory of gases, the ratio of the root mean square velocity of molecular oxygen and molecular hydrogen at 300 K is · 2001-2022
ABC26PH0727 · The unit of the constant ‘a’ in van der Waals equation of state of a real gas can be expressed as · 2001-2022 self-practice
ABC26PH0729 · If the root mean square speed of hydrogen gas at a particular temperature is 1900 m s-1, then the root mean square speed of nitrogen gas at… · 2001-2022 self-practice
ABC26PH0730 · The volume correction factor for a non-ideal gas in terms of critical pressure (pc), critical molar volume (Vc), critical temperature (Tc)… · 2001-2022 self-practice
ABC26PH0731 · The Maxwell-Boltzmann distribution f(vx) of one-dimensional velocities vx at temperature T is [Given: A is a normalization constant such… · 2001-2022 self-practice
Real Gases Virial
ABC26PH0095 · The virial expansion for a real gas can be written in either of the following forms: PV/RT = 1 + BP P + CP P2 + … = 1 + BV V + CV V2 + … If… · JUNE 2011