Q. At standard conditions,

N₂ + 2O₂ ↔ 2NO₂; ΔG° = 100 kJ/mole
NO + 1/2O₂ ↔ 2NO₂; ΔG° = -35 kJ/mole

The standard free energy of formation of NO in kJ/mole is

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Q. For a reaction, X → Y, if the concentration of 'X' is tripled; the rate becomes nine times. The order of reaction is

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Q. The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.

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Q. The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.

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Q. Mass number of an atom is the sum of the numbers of

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Q. Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.

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Q. A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct ?

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Q. The temperature at which the second Virial co-efficient of a real gas is zero is called the

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Q. The hydroxyl ion (OH⁻) concentration in a solution having pH value 3 will be

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Q. Boiling point of a solution as compared to that of the corresponding solvent is

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Q. Real gases approach ideal behaviour at

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Q. 1 bar is almost equal to __________ atmosphere.

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Q. Kopp's rule is useful for the determination of

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Q. Pick out the wrong unit conversion.

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Q. Viscosity of 1 centipoise is equal to 1 centis-toke in case of

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Q. Internal energy is independent of the __________ for an ideal gas.

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Q. __________ fuels require the maximum percentage of 'excess air' for complete combustion.

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Q. Pick out the wrong statement:

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Q. __________ equation relates latent heat and boiling point.

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Q. At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature.

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