Principles of Physical Chemistry I

Arithmetic mean of different velocities of molecules is

• most probable velocity

• average velocity

• root mean square velocity

Number of molecular collisions occurring per unit time per unit volume of a gas is

• collision number

• collision frequency

• collision diameter

Mean distance traveled by a gas molecule between two successive collisions is

• Mean free path

• collision diameter

• collision number

Deviation of real gases from ideal behavior is given by

• compressibility factor

• Vant Hoff factor

• ideal gas equation

Gases deviate from ideality at

• High pressure and low temperature

• Low pressure and high temperature

• same pressure and temperature

• Never show deviation

Intersection of two adjacent faces will give

• an Edge

• a form

• a Zone

Sodium Chloride is

• Cubic

• Tetragonal

• Tetrahedral

• hexagonal

Potassium chloride is

• FCC

• BCC

• Simple Cubic

Frenkel defect is

• Stoichiometric defect

• Non Stoichiometric defect

• Line Defect

FeS is als known as

• fool's gold

• F centre

• Wurtzite