A. V/2
B. 2V
C. V/4
D. V2
Correct Answer: V/2 ✔
Last Updated: March 05, 2019
Related MCQs
- 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__________?
- Which of the following ratios defines the recycle ratio in a chemical process ?
- N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (Molecular weight of urea = 60) ?
- The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________?
- Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume ‘X’ diffuses twice as fast as another perfume ‘Y’; what is the molecular weight of ‘Y’, if the vapor density of gas ‘X’ is 2? Molecular weight of gas ‘X’ is to be assumed to be 2 ?
- A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the __________?
- The osmotic pressure of a solution increases, if its __________ is decreased?
- The effect of pressure on the heat capacity of the gases __________ is negligible?
- The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies__________?
- Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?
- A bypass stream in a chemical process is useful, because it__________?
- At standard conditions, N2 + 2O2 ⇌ 2NO2; ΔG° = 100 kJ/mole NO + ½O2 ⇌ 2NO2; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is__________?
- Validity of the relationship, inputs = outputs, holds good for the system at steady state__________?
- Kopp’s rule is concerned with the calculation of__________?
- Viscosity of atmospheric air may be about __________ centipoise?
- Pick out the wrong unit conversion of heat transfer co-efficient?
- The rate of material __________ is zero in case of a steady state system?
- Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at__________?
- If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will __________?
- Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in __________ in the volume of the gas?