1
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Avogadro's law is valid for

A
all gases
B
ideal gas
C
Van der Waals gas
D
real gas
2
WB JEE 2022
MCQ (Single Correct Answer)
+2
-0.5
Change Language

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

A
75 K
B
112.5 K
C
225 K
D
900 K
3
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
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?
A
$${{{m_1}} \over {u_1^2}} = {{{m_2}} \over {u_2^2}}$$
B
$${m_1}{u_1} = {m_2}{u_2}$$
C
$${{{m_1}} \over {{u_1}}} = {{{m_2}} \over {{u_2}}}$$
D
$${m_1}u_1^2 = {m_2}u_2^2$$
4
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
At 273 K temperature and 76 cm Hg pressure the density of a gas is 1.964 g L-1. The gas is
A
CH4
B
CO
C
He
D
CO2
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