States of Matte...

Physical behavior of the states differs greatly even though chemical behavior of the three states is identical because chemical properties depends upon ?

The average Kinetic energy and Thermal energy are proportional to the

Gay Lussac’s law states that at constant volume, pressure of a fixed amount of a gas ?

Separation of a mixture of gases on the basis of the difference in their rates of diffusion is called 

Which of the following statements about Hydrogen bond incorrect?

When a compressed real gas is allowed to expand through a porous plug at a temperature above its inversion temperature, there is

dipole-dipole forces act between molecules that have

Which of the following options represents Avogadro's number?

Which gas is most soluble in water?

Which of the following liquids will exhibit the highest vapour pressure?

Gases deviate from ideal behaviour because their molecules

Directions: The following question consists of an Assertion (A) and a Reason (R). Use the following options to mark the appropriate answer.

(A): van der Waals equation is applicable only to non-ideal gases.
(R): Ideal gases obey the equation PV = nRT.

Directions: The following question consists of an Assertion (A) and a Reason (R). Use the following options to mark the appropriate answer.

(A): Helium shows only positive deviation from ideal behaviour.
(R): Helium is an inert gas.

Directions: The following question has four choices, out of which ONLY ONE is correct.

The density of ammonia gas at 25^oC and 2 atm pressure is about

Which gas has the same rate of diffusion as that of CO₂ at the same temperature and pressure?

The kinetic theory of gases predicts that total kinetic energy of gaseous assembly depends on

If two substances A and B have p^o_A : p^o_B = 1 : 2, where p^o_A and p^o_B are partial vapour pressures of A and B, and have mole fraction in the solution as 1 : 2, then what is the mole fraction of A in vapour phase?

Directions: The following question consists of an Assertion (A) and a Reason (R). Use the following options to mark the appropriate answer.

(A): The pressure of a fixed amount of an ideal gas is proportional to its temperature at constant volume.
(R): Ideal gas molecules neither attract nor repel each other.

Directions: The following question consists of an Assertion (A) and a Reason (R). Use the following options to mark the appropriate answer.

(A): SO₂ gas is easily liquefied while H₂ is not.
(R): SO₂ has low critical temperature, while H₂ has high critical temperature.

The root mean square speeds at STP for the gases H₂, N₂, O₂ and HBr are in the order

Which are three important states of matter ?

The intermolecular force primarily responsible for the condensed states of nonpolar substances is the

At constant temperature, the pressure of a fixed amount (i.e., number of moles n) of gas is?

The mass of 11.2 L of ammonia gas at STP is

Three states of matter are the result of?

Directions: The following question has four choices out of which ONLY ONE is correct.

An empty 2.0 l vessel is filled with CH₄ (g) at 1.00 atm and O₂ (g) at 4.00 atm, at 300^oC. A spark causes CH₄ to burn completely according to the equation:

CH₄(g) + 2O₂(g) CO₂(g) + 2H₂O(g), H = – 802 kJ

Partial pressure of oxygen inside the vessel after combustion is

A mixture of N₂ and O₂ in the ratio 4 : 1 by volume is heated in an open mouthed flask from 27^oC to 127^oC. Which of the following statements is/are true?

Gases have much lower density than the solids and liquids because ?

In the ideal gas equation PV = nRT, the value of R depends only on the

With increase in pressure, the mean free path