JEE CHEMISTRY MCQ: STATES OF MATTER

1 Medium

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Statement I: Standard boiling point of the liquid is less than the normal boiling point.

Statement II: 1 bar pressure is slightly less than 1 atm pressure.

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Correct option: B

Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I.

Option B is correct because both statements are correct, but the second statement (pressure difference) does not explain the first statement (boiling point difference); the boiling point difference is a direct consequence of the pressure difference.

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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