States of Matter (Gaseous & Liquid State) questions
213 published questions with worked solutions.
- It is easier to liquefy oxygen than hydrogen because:
- The concept of critical temperature for a gas was given by:
- A gaseous mixture contains 1 g of H _2, 4 g of He, 7 g of N _2 and 8 g of O _2. The gas having the highest partial pressure is:
- At relatively high pressure, the van der Waals' equation reduces to:
- The volume of a balloon filled with 4.0 g of He at 22° C and 720 mm of Hg is:
- 50 mL of gas A effuses through a pin hole in 200 seconds. The same volume of gas B under identical conditions effuses in 150...
- Gases deviate from ideal behaviour at high pressure. Which of the following is correct for this non-ideality?
- The liquefaction behaviour of "temporary" gases like CO _2 approaches that of "permanent" gases like N _2, O _2, etc., as we go:
- A and B are two identical vessels. A contains 15 g of ethane at 298 K and 1 atm . Vessel B contains 75 g of gas X_2 at the same...
- As the speed of molecules increases, the number of collisions per second:
- The density of CCl _4 vapour at 0° C and 76 cm Hg, in g/litre, is:
- Volume occupied by the molecules of one mole of gas at NTP, each having a radius of 10^ -8 cm , is (taken, per the van der Waals...
- For one mole of a van der Waals' gas, when b=0 and T=300 K , the PV vs 1/V plot is a straight line (graph not to scale) passing...
- A real gas, at high pressure, occupies, under identical conditions:
- 5 g each of the following gases, at 87° C and 750 mm pressure, are taken. Which of them will have the least volume?
- The rate of diffusion of NH _3 is 3.32 times faster than that of an unknown gas when both gases are at 350 K . The molecular...
- In a mixture of a light gas and a heavy gas in a closed container, the light gas will:
- A gas cannot be liquefied if:
- The molecular weight of a gas which diffuses through a porous plug at 1/6th the speed of hydrogen, under identical conditions, is:
- For a real gas, deviations from ideal gas behaviour are maximum at:
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Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration