States of Matte...

An LPG cylinder can withstand pressure difference of 15 atm across its boundaries. If at room temp $$({ 27 }^{ o })$$ it is filled with 2 atm pressure. Determine the temperature at which it will explode?

Vapour pressure of a saturated solution of a sparingly soluble salt $$A_2B_3$$ is 31.8 mm of Hg at $$40^{\circ}C$$. If vapour pressure of pure water is 31.8 mm of Hg at $$40^{\circ}C$$ the solubility product of $$A_2B_3$$ at $$40^{\circ}C$$ is:

Vapour pressure of pure benzene is 119 torr and of toluene is 37.0 torr at the same temperature mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50, will be:

$$18.0\ g$$ of glucose$$\left( {{C_6}{H_{12}}{O_6}} \right)$$ is added to $$178.2\ g$$ of water. The vapour pressure of water for this aqueous solution at $${100^o}\ C$$ is :

100 g of liquid $$A$$ (molar mass 140 g $$mol^{-1}$$) was dissolved in 1000 g of liquid $$B$$ (molar mass 180 g $$mol^{-1}$$) The vapour pressure of pure liquid $$B$$ was found to be 500 torr. 

The vapour pressure of a pure liquid $$A$$ is $$70$$ torr at $$27^oC$$. It forms an ideal solution with another liquid $$B$$. The mole fraction of $$B$$ is $$0.2$$ and total vapour pressure of the solution is $$84$$ torr at $$27^oC$$. The vapour pressure of pure liquid $$B$$ at $$27^o$$C is:

Which of the following change is observed occurs when a substance X is converted from liquid to vapour phase at the standard boiling point?
I.Potential energy of the system decreases
II. The distance between molecules increases
III. The average kinetic energy of the molecules in both phases are equal.

$${ \Delta  }_{ f }{ G }^{ }$$ at 500 K for substance $$S$$ in liquid state and gaseous state are +100.7 kcal $${ }^{ -1 }$$ and +103 kcal $${ }^{ -1 }$$, respectively. Vapour pressure of liquid $$S$$ at 500 K is approximately equal to:
($$R=2\ cal $$ $${ K }^{ -1 }{ }^{ -1 }$$)

The vapour pressure of pure $$A$$ is 10 torr and at the same temperature when 1 g of $$B$$ is dissolved in 20 gm of $$A$$, its vapour pressure is reduced to 9.0 torn If the molecular mass of $$A$$ is 200 amu, then the molecular mass of $$B$$ is:

Pressure of $$COCl_2(g)$$ in the gaseous mixture in final state ?