Q341
Open questionMolar heat capacity of water in equilibrium with ice at constant pressure is
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Q342
Open questionThe weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies
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Q343
Open questionThe pressure under which liquid and vapor can co-exit at equilibrium is called the __________ vapor pressure.
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Q344
Open questionA compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is
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Q345
Open questionThe molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be
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Q346
Open questionA gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is
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Q347
Open questionOn addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes
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Q348
Open questionAt room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be
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Q349
Open questionAn aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is
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Q350
Open questionThe hydroxyl ion (OH-) concentration in a solution having pH value 3 will be
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Q351
Open question1 kg/m2 is equal to __________ mm water column.
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Q352
Open questionWhich of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces?
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Q353
Open questionOsmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the
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Q354
Open question500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be __________ mm Hg.
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Q355
Open question°API gravity of water at N.T.P. is about
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Q356
Open questionEnthalpy 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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Q357
Open questionVariation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the
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Q358
Open questionKinematic viscosity of 1 m2/second is equivalent to __________ stokes.
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Q359
Open questionThe forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation
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Q360
Open questionUnit of mass velocity is
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