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Gaseous State

22 questions · Chemistry · IIT JAM

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IIT JAM
Chemistry
Gaseous State

Gaseous State

22 questions · Chemistry · IIT JAM

For van der Waals gases, at the critical point, $\frac{d P}{d V _{m}} = 0$ and2025 · Q28 · MCQ
In one second, 95 moles of He gas particles are hitting a wall of a cubic container of volume 1 dm $^{3}$ . If the average velocity component of the particles perpendicular to the wall is 1000 m s $^{- 1}$ , then the pressure of the gas in…2025 · Q57 · Numerical
If nitrogen and oxygen gases are at the same temperature, the correct statement according to the kinetic theory of gases is2024 · Q22 · MCQ
For one mole of an ideal gas, the correct statement(s) is/are [U = internal energy; V = volume; T = temperature; P = pressure]2024 · Q36 · Multiple correct
Equal number of gas molecules **A** (mass $m$ and radius $r$ ) and **B** (mass $2 m$ and radius $2 r$ ) are placed in two separate containers of equal volume. At a given temperature, the ratio of the collision frequency of **B** to that of…2023 · Q21 · MCQ
The Maxwell-Boltzmann distribution $f (v_{x})$ of one-dimensional velocities $v_{x}$ at temperature $T$ is [Given: $A$ is a normalization constant such that $\int_{- \infty}^{\infty} f (v_{x}) d v_{x} = 1$ and $k_{B}$ is the Boltzmann constant]2022 · Q27 · MCQ
The volume correction factor for a non-ideal gas in terms of critical pressure ( $p_{c}$ ), critical molar volume ( $V_{c}$ ), critical temperature ( $T_{c}$ ) and gas constant ( $R$ ) is2021 · Q27 · MCQ
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 the same temperature, in m s⁻¹ (rounded off to the nearest integer), is .…2021 · Q50 · Numerical
The Boyle temperature ( $T_{B}$ ) is defined as the temperature at which the properties of a real gas coincide with those of an ideal gas in the low pressure limit. The graph that shows the pressure dependence of the compression…2020 · Q14 · MCQ
The Maxwell distribution of speeds of a gas at 300 K is given below The molar mass (in g mol⁻¹) of this gas is (Round off to one decimal place) (R = 8.3 J mol⁻¹ K⁻¹) Includes diagram2020 · Q54 · Numerical
According to the kinetic theory of gases, the ratio of the root mean square velocity of molecular oxygen and molecular hydrogen at 300 K is2019 · Q14 · MCQ
The unit of the constant ‘a’ in van der Waals equation of state of a real gas can be expressed as2019 · Q32 · Multiple correct
The behavior of Cl₂ is closest to ideal gas behavior at2018 · Q28 · MCQ
The value of $C_{v}$ for 1 mol of N $_{2}$ gas predicted from the principle of equipartition of energy, ignoring vibrational contribution, is J K $^{- 1}$ mol $^{- 1}$ (rounded up to two decimal places). $[R = 8.3 JK^{- 1} mol^{- 1}]$ …2018 · Q49 · Numerical
Assuming ideal gas behavior, the density of O $_{2}$ gas at 300 K and 1.0 atm is g L $^{- 1}$ (rounded up to two decimal places). $[R = 0.082 L atm mol^{- 1} K^{- 1}, molar mass of O_{2} = 32]$ 2018 · Q50 · Numerical
A vessel contains a mixture of H₂ and N₂ gas. The density of this gas mixture is 0.2 g L⁻¹ at 300 K and 1 atm. Assuming that both the gases behave ideally, the mole fraction of N₂ (g) in the vessel is (final…2017 · Q59 · Numerical
The relationship between the van der Waals 'b' coefficient of N₂ and O₂ is2016 · Q29 · MCQ
From the kinetic theory of gases, the ratio of most probable speed (Cmp) to root mean square speed (Crms) is2016 · Q30 · MCQ
$Cu (s) + 4 H^{+} (a q) + 2 NO_{3}^{-} (a q) \to 2 NO_{2} (g) + Cu^{2 +} (a q) + 2 H_{2} O (l)$ In the above reaction at 1 atm and $298 K$ , if $6.36 g$ of copper is…2016 · Q57 · Numerical
The intermolecular van der Waals potential is inversely proportional to $r^{6}$ . The corresponding force is proportional to2015 · Q10 · MCQ
In the gas phase, the ratio of excluded volume to molecular volume for a spherical molecule is 2015 · Q47 · Numerical
In an ideal monoatomic gas, the speed of sound is given by $\frac{5 R T}{3 M}$ . If the speed of sound in argon at 25 °C is 1245 km h $^{- 1}$ , the root mean square velocity in m s $^{- 1}$ is 2015 · Q60 · Numerical