Q. Isotonic solutions must have the same

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Q. The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is

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Q. __________ kg of CaCO₃ on heating will give 56 kg of CaO.

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Q. Enthalpy of formation of NH₃ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH₃ → N₂ + 3H₂, is equal to __________ kJ/kg. mole.

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Q. Ideal solution is formed, when its components have zero

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Q. Pick out the wrong statement:

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Q. 'Giga' stands for

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Q. The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the

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Q. The effect of pressure on the heat capacity of the gases __________ is negligible.

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Q. One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is

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Q. Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ?

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Q. Number of gm moles of solute dissolved in 1 kg of solvent is called its

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Q. Size range of the colloidals particles is

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Q. The latent heat of vaporisation

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Q. Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

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Q. Pick out the wrong unit conversion of heat transfer co-efficient.

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Q. The value of gas constant 'R' is __________ kcal/kg.mole.°C.

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Q. Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume 'X' diffuses twice as fast as another perfume 'Y'; what is the molecular weight of 'Y', if the vapor density of gas 'X' is 2 ? Molecular weight of gas 'X' is to be assumed to be 2.

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Q. For estimation of heat capacity of a solid compound, one can use

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Q. With increase in the temperature of pure (distilled) water, its

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