States of Matte...

In the gas equation $$PV = nRT$$ , the value of $$R$$ depends upon:

Mass of a given gas occupies two litre at STP. By keeping the pressure constant, at what temperature the gas will occupy 4 litre?

When the pressure of 5L of $$N_2$$ is double and its temperature is raised from 300K to 600K, the final volume of the gas would be:

If  $$500ml$$  of a gas  $$A$$  at  $$1000$$ torr, and  $$1000ml$$  of gas  $$B$$  at  $$800$$  torr  are placed in  $$2L$$  container the final pressure will be -

The vapour pressure of a solution containing 5 g of a non electrolyte in 100 g of water at a particular temperature is $$2985 N{m}^{-2}$$. If the vapour pressure of pure water is $$3000 N{m}^{-2}$$, the molecular weight of solute is:

The temperature and pressure at which ice, liquid. water and water vapour can exist together are ?

Which of the following is an anti-knocking compound, that has been phased out in many countries so far?

A gas is said to behave like an ideal gas when the relation $$\dfrac{PV}{T} =$$ constant. When do you expect a real gas to behave like an ideal gas?

According to the equipartition principle, each degree of freedom contribute following amount to the translational kinetic energy of molecule: (hence k = Boltzmann constant)

The solubility of a specific non-volatile salt is  $$4\mathrm { g }$$  in $$100\mathrm { g }$$  of water at  $$25 ^ { \circ } \mathrm { C } .$$  If  $$2.0 g,$$  $$4.0\mathrm g$$  and  $$6.0 g$$  of the salt added of  $$100 g$$  of water at  $$25 ^ { \circ } \mathrm { C } ,$$  in system  $$X , Y$$  and  $$Z .$$  The vapour pressure would be in the order: