States of Matte...

Ammonium carbamate dissociates as:
$$N{ H }_{ 2 }COON{ H }_{ 4 }(s)\quad \rightleftharpoons \quad 2N{ H }_{ 3 }(g)\quad +\quad C{ O }_{ 2 }(g)$$
In a closed vessel containing ammonium carbamate in equilibrium, ammonia is added such that partial pressure of $$N{ H }_{ 3 }$$ now equals to the original total pressure. Calculate the ratio of partial pressure of $$C{ O }_{ 2 }$$ now to the original partial pressure of $$C{ O }_{ 2 }$$ : 

At $$20^{o}C$$, the vapour pressure of $$0.1\ M$$ solution of urea is $$0.0311\ mm$$ less than that of water and the vapour pressure of $$0.1\ M$$ solution of $$KCl$$ is $$0.0574\ mm$$ less than that of water. The apparent degree of dissociation of $$KCl$$ at this dilution is :

In the given equilibrium, $${ H }_{ 2 }O(l)\rightleftharpoons { H }_{ 2 }O(g)$$ at $$100^oC$$ the vapour pressure is $$1 \ atm$$. If the volume of the container is halved, after sometime the vapour pressure becomes:

If $${ CuSO }_{ 4 }\cdot 5H_{ 2 }O\left( s \right) \rightleftharpoons { CuSO }_{ 4 }\cdot { 3H }_{ 2 }O\ (s)+{ 2H }_{ 2 }O\ (l){ K }_{ p }=1.086\times { 10 }^{ -4 }{ atm }^{ 2 }\ at\ { 25 }^{ o }C$$ The efflorescent nature of $${CuSO}_{4}\cdot \ {5H}_{2}O$$ can be noticed when vapour pressure of $$ {H}_{2}O$$ in atmosphere is:

Which of the following has least vapour presure ?

A solution of a non-volatile solute in water has a boiling point of 375.3K. Calculate the vapour pressure of water above this solution at 338K. Given, Po (water) = 0.2467 atm at 338K and Kb for water = 0.52.

$$0.2\ g$$ of a gas $$X$$ occupies a volume of 0.44 liter at given pressure and temperature. Under identical conditions of $$P$$ and $$T$$, $$0.1\ g$$ of the $$CO_2$$ gas occupies $$0.32\ L$$ volume. The gas $$X$$ can be:

Which solution has the highest vapour pressure?

Reaction of $${NO}$$ takes place with hydrogen if equal molar mixture of snow and hydrogen is taken at initial total pressure of 350 mm of Mercury, total pressure reduces to half its value after 121 seconds while if initial total pressure would have been 275 mm it reduces to half of the 196 seconds calculate the order of reaction?

The brown gas Y in the mixture is?