MCQs: Boiling point of a non-homogeneous mixture of immiscible liquids is _____________ that of any one of its separate components?
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MCQs: The vapour pressure of a solution (made by dissolving a solute in a solvent) is ____________ that of the pure solvent?
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MCQs: 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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MCQs: 2 litres of nitrogen at N.T.P. weighs ______________ gms ?
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MCQs: Heat of reaction is a function of the___________________?
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MCQs: The average translational kinetic energy with which a gas molecule is endowed is dependent on its__________________?
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MCQs: Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the_________________?
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MCQs: The vapor pressure of liquids (having similar chemical nature) at any specified temperature ______________ with increasing molecular weight?
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MCQs: Enthalpy of a vapor gas mixture may be increased by increasing the________________?
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MCQs: During a phase change process like sublimation, vaporisation, melting etc., the specific ____________ does not change?
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MCQs: The maximum adiabatic flame temperature of fuels in air is ____________ the maximum flame temperature in pure oxygen?
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MCQs: A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately ?
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MCQs: Kinematic viscosity of 1 m2 /second is equivalent to _____________ stokes?
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MCQs: For water evaporating into unsaturated air under adiabatic conditions and at constant pressure, the ____________ remains constant throughout the period of vaporisation ?
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MCQs: At higher temperature, molal heat capacities of most of the gases (at constant pressure) ____________ with increase in temperature?
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MCQs: 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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MCQs: The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?
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MCQs: Cp – Cv for an ideal gas is equal to________________?
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MCQs: Real gases approach ideal behaviour at___________________?
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MCQs: In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________________?
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