JEE CHEMISTRY MCQ: STATES OF MATTER

1 Hard

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Application +4 | -1

To an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mole of He and 1.0 mole of an unknown compound (vapour pressure 0.68 atm at

0\,\,^\circ C

) are introduced. Considering the ideal gas behaviour, the total volume (in litre) of the gases at 

0\,^\circ C

  is close to

View answer and explanation

Correct option: C

Option C (7) is correct because the partial pressure of He is calculated, and then using the ideal gas law, the volume is found to be approximately 7L.

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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