Question

1. (a) Define Brownian movement. (b) How does Brownian movement vary for three different states of matter?​

Answer 1

Explanation:

From the three states of matter, solids expand the least. Brownian movement is maximum in gases . ... Matter can change from one state to another by change in temperature or pressure. The space between atoms(molecules) of solid is minimum .

Answer 2

Answer:

From the three states of matter, solids expand the least.

Brownian movement is maximum in gases .

Cohesive forces are negligible in gases .

Matter can change from one state to another by change in temperature or pressure.

The space between atoms(molecules) of solid is minimum .

Intermingling of molecules is called diffusion .

Ice on absorption of heat converts to 'X' a procee called melting . 'X' changes to water vapour on heating . Water vapour changes back to 'X' on condensation . The constant temperature at which ice changes into 'X' is called its fusion point .

Explanation: