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Periodicity

The forces of...

Question

The forces of attraction between the elemental gaseous molecules are called Van der Waal's forces of attraction.

A

True

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B

False

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Solution

The correct option is A True
It is true because the elemental gaseous molecules are holded together very widely and thus can be broken down easily. So it is formed by weak bonds. Compared to all bonds, hydrogen and Wanderwaal's force are weaker and a hydrogen bonding can be formed in gases, it is Wanderwaal's force.

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Q. If force of attraction between the molecules is negligible, van der Waals; equation (for one mole) will become:

Q. For the non-zero values of forces of attraction between gas molecules and zero volume occupied by the gas molecules, Van der Waals equation will be:

Q. Given, Van der waals equation for non-ideal gas

(P + \frac{a n^{2}}{V^{2}}) (V - n b) = n R T

The term that correctly describes intermolecular forces of attraction between the molecules is:

Q. Weakest van der Waals forces of attraction is seen in which of the following gases?

Q. Assertion :In van der Waals equation

[P + \frac{a}{V^{2}}] (V - b) = R T

pressure correction

(a / V^{2})

is due to the force of attraction between molecules. Reason: Volume of gas molecule cannot be neglected due to force of attraction.

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