Q. A solution with reasonably permanent pH is called a/an __________ solution.

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Q. The value of Trouton's ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids.

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Q. Pick out the wrong unit conversion of heat transfer rate.

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Q. A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

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Q. The crystallisation of a solute from a solution may be done by

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Q. At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?

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Q. 1 kg/m² is equal to __________ mm water column.

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Q. An equation for calculating vapour pressure is given by, log₁₀ P = A - B(t + c). This is called the

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Q. The value of the gas-law constant 'R' is 1.987

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Q. The combustion equations of carbon and carbon monoxide are as follows:

C + O₂ = CO₂, ΔH = - 394 kJ/kg . mole CO + 1/2 O₂ = CO₂, ΔH = - 284.5 kJ/kg. mole.

The heat of formation of CO is __________ kJ/kg. mole.

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Q. Dissolving a solute in a solvent does not change its

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Q. A reduction process is accompanied with increase in the

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Q. Heat of transition is the heat evolved or absorbed, when a substance is converted from

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