States of Matter Gases and Liquids

Kinetic energy of one mole of an ideal gas at 300 K is

A gas has a vapour density 11.2.The volume occupied by 1 g of gas at NTP is

At 27⁰C average kinetic energy of one mole of helium gas can be given

A liquid is in equilibrium with its vapour at its boiling point.The molecules in the two phases have equal

The smell of agarbati, mixed in the atmosphere , is due to

The gas molecules have r.m.s. velocity of its molecules as 1000 m/s. What is its average velocity

A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure.The volume of this gas at 47⁰C and 640 mm pressure will be

If the gas at constant temperature and pressure expands, then its

The density of methane (CH₄) at 2.0 atmospheric pressure and 27⁰C is

What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C

To which of the followings the Dalton’s law of partial pressure is not applicable

A real gas most closely approaches the behaviour of an ideal gas at

Measurement of the dry gas from the volume of moist gas is based on

Molar volume of CO₂ is maximum at

The boiling point of water decreases at higher altitudes because

Which of the following statement is not correct

If the ratio of the rates of diffusion of two gases A and B is 4 : 1. Then the ratio of their densities in the same order is

At what pressure a gas, which occupies 100 mL at a pressure of 720 mm, will occupy a volume of 84 mL

A helium, molecule is two times heavier than a hydrogen molecule at 298 K. The average kinetic energy of a helium molecule is

Which of the following molecules has the largest root mean square velocity at 25°C

Kinetic theory of gases presumes that collision between the molecules to be perfectly elastic because

The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled. Then the volume of carbon dioxide gas would be

In the equation of state of an ideal gas PV = nRT, the value of the universal gas constant would depend only on

A gas deviates from ideal behaviour at a high pressure because its molecules

Helium is used in balloons in place of hydrogen because it is

The atmospheric pressure is sum of the

Use of hot air balloons in sports and for meteorological observations is an application of

Which among the following gas will greatly deviate from Henry’s law in water

The kinetic energy of a gas molecule is … temperature

What is kinetic energy of 1 g of O₂ at 47⁰C

6.4 g SO₂ at 0⁰C and 0.99 atm pressure occupies a volume of 2.24 L. Predict which of the following is correct

How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C at constant volume? ( R = 2 cal/mol.K)

Surface tension vanishes at

Different gases at the same temperature must have

At what temperature, the rms velocity of gas shown at 50⁰C will be doubled

The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is (R = 0.0821 lit. atm mol⁻¹ K⁻¹)

If 0.44g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm of Hg and 273⁰C, then the compound is

A vessel contains a mixture of different types of gases.Which of the following statement is correct

Which of the following is a representation of Gay-Lussac’s law

What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL of O₂ at 0.52 atm. pressure are mixed in 400 mL vessel at 20⁰C

8.2 L of an ideal gas weight 9.0 gm at 300 K and 1 atm pressure. The molecular mass of the gas is

Distribution law was given by

300 mL of a gas at 27⁰C is cooled to -3⁰C at constant pressure. The final volume is

A ideal gas will have maximum density when

A flask contains 36% oxygen and 26% hydrogen. If the total pressure of the mixture of gases is 500 mm, the partial pressure of oxygen is

Increasing order of rms velocities of H₂,O₂,N₂ and HBr is

At what temperature will the volume of gas becomes 2x, if volume of this gas is x at 0⁰C at constant pressure

If a mixture of CO and N₂ in equal amount have total 1 atm pressure, then partial pressure of N₂ in the mixture is

On doubling P and V with constant temperature the equilibrium constant will

There are two containers containing gases,one at pressure 30 atm and volume 20 mL and the other at pressure 25 atm. What will be the volume of the container when two are mixed