Vapour Pressure

A gaseous mixture was prepared by taking equal number of moles of Helium and Neon. If the total pressure of the mixture was found to be $10 \mathrm{atm},$ the partial pressure of Helium in the mixture is

A gaseous mixture contains $2$ moles of $\mathrm{A}, 3$ moles of $\mathrm{B}, 5$moles of $\mathrm{C}$ and $10$ moles of $\mathrm{D}$ contained in a vessel. If the gases are ideal and the partial pressure of $\mathrm{C}$ is $1.5 \mathrm{atm},$ then the partial pressure of $\mathrm{B}$ will be $\underline{ }$

Pick out the wrong statement(s).
(i) Vapour pressure of a liquid is the measure of the strength of intermolecular attractive forces.
(ii) Surface tension of a liquid acts perpendicular to the surface of the liquid.
(iii) Vapour pressure of all liquids is same at their freezing points.
(iv) Liquids with stronger intermolecular attractive forces are more viscous than those with weaker intermolecular force.

The boiling point of water in a pressure cooker is

The vapour pressure of a liquid

Which of the following statements regarding a liquid is not correct?

The incorrect statement among the following is

The vapour pressure of water at $300 \mathrm{k}$ in a closed container is $0.4 \mathrm{atm}$. If the volume of the container is double, its vapour pressure at $300 \mathrm{K}$ will be

Cotyledons are also called-

Among the following substances the lowest vapour pressure is exerted by

Pick out the wrong statement(s).
(i) Vapour pressure of a liquid is the measure of the strength of intermolecular attractive forces.
(ii) Surface tension of a liquid acts perpendicular to the surface of the liquid.
(iii) Vapour pressure of all liquids is same at their freezing points.
(iv) Liquids with stronger intermolecular attractive forces are more viscous than those with weaker intermolecular force.

Select correct statement(s)

If saturated vapours are compressed slowly (temperature remaining constant) to half the initial volume, the vapour pressure will

Which of the following will increase with the increase in temperature?

The normal boiling point of water is 373 K (at 760 mm). Vapour pressure of water at 298 K is 23 mm. If enthalpy of vaporisation is 40.656 kJ/mol, the boiling point of water at 23 mm atmospheric pressure will be-