WB JEE 2022 | Gaseous State Question 6 | Chemistry

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WB JEE 2022

MCQ (Single Correct Answer)

-0.25

Avogadro's law is valid for

all gases

ideal gas

Van der Waals gas

real gas

WB JEE 2022

MCQ (Single Correct Answer)

-0.5

Let (C_rms)_H₂ is the r.m.s. speed of H₂ at 150 K. At what temperature, the most probable speed of helium [C_mp)_He] will be half of (C_rms)_H₂ ?

75 K

112.5 K

225 K

900 K

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

Molecular velocities of two gases at the same temperature (T) are u₁ and u₂. Their masses are m₁ and m₂ respectively. Which of the following expressions is correct at temperature T?

$${{{m_1}} \over {u_1^2}} = {{{m_2}} \over {u_2^2}}$$

$${m_1}{u_1} = {m_2}{u_2}$$

$${{{m_1}} \over {{u_1}}} = {{{m_2}} \over {{u_2}}}$$

$${m_1}u_1^2 = {m_2}u_2^2$$

WB JEE 2020

MCQ (Single Correct Answer)

-0.25

At 273 K temperature and 76 cm Hg pressure the density of a gas is 1.964 g L^-1. The gas is

CH₄

CO₂

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