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Thermal expansion is……..for different states of the same substance.
a) same                                 
b) different
c) not fixed                          
d) all of these

b

Which of the following state of matter expand more than others?
a) solids
b) liquids               
c) gases 
d) none

c

Liquid substance expand more than ………states of matter.
a) solid 
b) liquid                
c)gasd
d) none

a

Thermal Expansion In Solids:

When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small.


In which of the following state of matter, the particles vibrate about their mean position but don’t leave their positions?
a) solid 
b) liquid                
c) gaseous

a

Why solids expand on heating?
a) their particles vibrate with greater amplitude
b) the gap between neighboring atoms increases
c) vibrational kinetic energy of their particles increases                                              
d) all of these

d