Pick out the wrong statement?
Pick out the wrong statement?
Pick out the wrong unit conversion of calorific value?
Pick out the wrong statement ?
Pick out the wrong statement?
Pick out the wrong statement?
1 ata is equivalent to__________?
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is__________?
At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be__________?
The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is__________?
Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is__________?
For an ideal gas, the compressibility factor__________?
An Azeotropic solution of two liquids has boiling point lower than either of them, when it__________?
A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor?
Specific gravity on API scale is given by the relation (where, G = specific gravity at 15.5°C) ?
Internal energy of a substance comprises of the __________ energy?
Isotonic solutions must have the same__________?
Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult’s law is proportional to the__________?
The pressure of ‘V’ litres of a dry gas is increased from 1 to 2 kgf/cm2 at a constant temperature. The new volume will become__________?
For a given mass of a gas at constant temperature, if the volume ‘V’ becomes three times, then the pressure ‘P’ will become__________?
One Newton is equal to __________ dynes?
In a binary liquid solution of components „A‟ and „B‟, if component „A‟ exhibits positive deviation from Raoult’s law, then component „B‟ ?
__________ kg of CaC03 on heating will give 56 kg of CaO?
In case of a ternary system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the__________?
The elevation in boiling point of a solution is proportional to the __________ of the solution?
What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?
The evaporation of aqueous solution of sugar causes its molarity to__________?
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?
Which of the following is an exothermic reaction ?
Number of gram equivalent of solute dissolved in one litre of solution is called its__________?
Kopp’s rule is helpful in finding the__________?
Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the__________?
Mass number of an atom is the sum of the numbers of__________?
Which of the following is not a unit of pressure ?
The heat of adsorption of a gas caused by Van der Waals forces of attraction and capillarity is equal to the heat of__________?
1 BTU/ft3 is approximately equal to __________ kcal/m3?
A solution is made by dissolving 1 kilo mole of solute in 2000 kg of solvent. The molality of the solution is__________?
Avogadro number is the number of molecules in one __________ of a gas?
Which equation is not an equation of state ?
A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) ?
For a reaction, X → Y, if the concentration of ‘X’ is tripled; the rate becomes nine times. The order of reaction is__________?
1 kg/cm2 is equal to__________?
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is__________?
The hydroxyl ion (OH-) concentration in a solution having pH value 3 will be__________?
For estimation of heat capacity of a solid compound, one can use__________?
40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is__________?
Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?
The heat change for the reaction, C(s) + 2S(s) → CS2(l), is 104.2 kJ. It represents the heat of__________?
Raoult’s law is obeyed by a __________ solution?
On 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__________?
Cp equals Cv at__________?

Pick out the wrong statement?

A. Clausius-Clapeyron equation relates the latent heat of vaporisation to the slope of the vapor pressure curve
B. At the boiling point of liquid at the prevailing total pressure, saturated absolute humidity is infinite
C. Percentage saturation and relative saturation are numerically equal for an unsaturated vapor gas mixture
D. Clapeyron equation is given by dP/dT = (λ/T) (VG – VL); where, P = vapor pressure, T = absolute temperature, λ = latent heat of vaporisation, VG and VL = volumes of gas and liquid respectively

Correct Answer: Percentage saturation and relative saturation are numerically equal for an unsaturated vapor gas mixture ✔

Last Updated: March 07, 2019