1
WB JEE 2023
MCQ (Single Correct Answer)
+2
-0.5
Change Language

Case - 1 : An ideal gas of molecular weight M at temperature T.

Case - 2 : Another ideal gas of molecular weight 2M at temperature T/2.

Identify the correct statement in context of above two cases.

A
Average kinetic energy and average speed will be the same in the two cases.
B
Both the averages are halved.
C
Both the averages are doubled.
D
Only average speed is halved in the second case.
2
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
Change Language

The average speed of H2 at T1K is equal to that of O2 at T2K. The ratio T1 : T2 is

A
1 : 16
B
16 : 1
C
1 : 4
D
1 : 1
3
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
4
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
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