EXAMIANS
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.
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The evaporation of aqueous solution of sugar causes its molarity to
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Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0-5m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. Its units are
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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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Which of the following is followed by an ideal solution ?
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The total number of atoms in 8.5 gm of NH₃ is __________ x 1023.
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The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.
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Total energy at a point comprises of __________ energy.
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For a reacation, X → Y, if the concentration of 'X' is tripled; the rate becomes nine times. The order of reaction is
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CaCO₃ contains __________ percent of Ca by weight.
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