Air is a . . . . . . . . . . . . . . Of gases.

Complete the following paragraph by filling in the blanks (i) to (x) with appropriate words: The air breathed in and out in course of quiet breathing is termed as (i) .............. Some tidal air is left in (ii) .................. such as trachea and bronchi where no (iii) .............. of gases can occur. (iv) ............... is the air that can be drawn forcibly and (v).. ....... is the air forcibly expelled. The volume of air that can be taken (vi) ........... and (vii) ................. by maximum inspiration and expiration is called (viii) .............. . Some (ix) ..... air is always left in the (x)............. even after forcibly breathing out.

Gases expand .............. than liquids.

Chemistry is the science of ...... and their ....... (substances/transformations/gases)

Total pressure of gases is ...........to the sum of partial pressure of all gases.

Real gases behave ideal at ........and .......

The air is a mixture of a number of gases. The maojr components are oxygen and nitrogen with approximate proportion of 20% is to 79% by volume at 298 K. The water is in equilibrium with air at a pressure of 10 atm. At 298 K if the Henry's law constants for oxygen and nitrogen at 298 K are 3.30xx10^(7) mm and 6.51xx10^(7) mm respectively, calculate the composition of these gases in water.

For real gases, (PV)/(nRT) ........

The rare gases are

Heat transfer in liquids and gases is by.........

Some metals exist as gases.