WB JEE 2024 | Gaseous State Question 1 | Chemistry

WB JEE 2024

MCQ (Single Correct Answer)

-0.25

The compressibility factor for a van der Waal gas at high pressure is

$$1+\frac{\mathrm{RT}}{\mathrm{Pb}}$$

$$1+\frac{\mathrm{Pb}}{\mathrm{RT}}$$

$$1-\frac{\mathrm{Pb}}{\mathrm{RT}}$$

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

The root mean square (rms) speed of X$$_2$$ gas is x m/s at a given temperature. When the temperature is doubled, the X$$_2$$ molecules dissociated completely into atoms. The root mean square speed of the sample of gas then becomes (in m/s)

x/2

WB JEE 2023

MCQ (Single Correct Answer)

-0.5

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.

Average kinetic energy and average speed will be the same in the two cases.

Both the averages are halved.

Both the averages are doubled.

Only average speed is halved in the second case.

WB JEE 2022

MCQ (Single Correct Answer)

-0.25

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

1 : 16

16 : 1

1 : 4

1 : 1

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