Chemistry Test ...

The increase in volume of air, when temperature of 600 ml of it, is increased from 27°C to 47°C under constant pressure, is 

The density of steam at 27°C and 8.314 × 10⁴ pascal is 0.8 Kg m^–3. The compressibility factor would be

The velocity corresponding to a gas "X" (MW = 100) corresponding to the maxima of the curve given below at a given temperature is 200 m/s. Then kinetic energy of 300 gram of gas "X" will be :

A 4 : 1 molar mixture of He and CH₄ gases is contained in a vessel at 20 bar pressure. Due to a hole in the vessel, the gas mixture leaks out. The ratio of number of moles of He to CH₄ in the mixture effusing out initially will be :

20 ml of H₂O₂ after acidification with dil H₂SO₄ required 30 ml of N/12 KMnO₄ for complete oxidation. The strength of H₂O₂ solution is [Molar mass of H₂O₂ = 34]

3 mole of a mixture of FeSO₄ and Fe₂(SO₄)₃ required 100 ml of 2M KMnO₄ solution in acidic medium. Hence mole fraction of FeSO₄ in the mixture is

Arsenic estimation can be done by Bettendorff's process. The reaction is given below :

As₄O₆ + SnCl₂ + HCl → As₄ + SnCl₄ + H₂O

Find out the exact stoichiometric ratio of the reactants : (in the order as given in question)

How many moles of KMnO₄ are needed to oxidised a mixture of 1 mole of each FeSO₄ and FeC₂O₄ in acidic medium

The correct figure representing isothermal and adiabatic expansions of an ideal gas from a particular initial state is:

An ideal gas with C_v = 3R expands adiabatically into a vacuum thus doubling its volume. The final temperatue is given by :