JEE CHEMISTRY MCQ: STATES OF MATTER

1 Easy

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Analyzing +4 | -1

Indicate the incorrect statement for equal volumes of

\mathrm{N}_2(\mathrm{g})

and

\mathrm{CO}_2(\mathrm{g})

at 25 degree Celsius and

1 \mathrm{~atm}

View answer and explanation

Correct option: B

The rms speed remains the same for both

\mathrm{N}_2

and

\mathrm{CO}_2

The incorrect statement is B (The rms speed remains the same for both N2 and CO2) because the rms speed depends on the molar mass, which is different for N2 and CO2.

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A quantity of hydrogen gas occupies a volume of

30 \mathrm{~mL}

at a certain temperature and pressure. What volume would half this mass of hydrogen occupy at triple the absolute temperature and the pressure were one-ninth that of the original gas? In deriving the kinetic equation we make use of the root mean square speed of the molecules which is: Consider the following statements for kinetic molecular theory of gases
a. Particles of a gas move in all possible directions in straight lines.
b. At any particular time, different particles in the gas have different kinetic energies.
c. Collisions of gas molecules are perfectly inelastic in nature.
The correct statement(s) is/are The compressibility factor of an ideal gas is The relative strength of interionic/intermolecular forces in decreasing order is Compressibility factor of an ideal gas is