1.
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.

2.
In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure.

3.
Size range of the colloidals particles is

4.
One micron is equal to

5.
The reverse process of fractional crystallisation is called

6.
Total energy at a point comprises of __________ energy.

7.
With rise in pressure, the solubility of gases in solvent, at a fixed temperature

8.
The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).

9.
Pick out the wrong unit conversion.

10.
One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to

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