Q. Heat of solution in a system in which both solute and solvent are liquids is termed as

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Q. A solution is made by dissolving 1 kilo mole of solute in 2000 kg of solvent. The molality of the solution is

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Q. Average molecular weight of air is about

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Q. 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H₂ produced will be __________ gm.

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Q. Pick out the wrong unit conversion of calorific value.

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Q. Increasing the temperature of an aqueous solution will cause decrease in its

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Q. Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.

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Q. One micron is equal to

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Q. Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is

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Q. Gases diffuse faster compared to liquids because of the reason that the liquid molecules

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Q. Equal masses of CH₄ and H₂ are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is

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Q. CaCO₃ contains __________ percent of Ca by weight.

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Q. Solutions which distil without change in composition are called

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Q. Gases having same reduced temperatures and reduced pressures

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Q. Which of the following is not a unit of pressure ?

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Q. The evaporation of aqueous solution of sugar causes its molarity to

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Q. 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. Mole fraction of water vapour in the product gases is about

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Q. Volume percent for gases is equal to the

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Q. Compressibility factor of a real gas is the ratio of the actual volume to that predicted by ideal gas law. As the pressure of the gas approaches zero, the compressibility factor approaches

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Q. Cᵨ equals Cᵥ at

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