21.
Solids are
A
very compressible
B
very little compressible
C
incompressible
D
B and C both
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Solids are
very compressible
very little compressible
incompressible
B and C both
Pressure of gas is due to the
random motion of gas molecules
collision of gas molecules with each other
collision of gas molecules with the wall of container
vibration of solid particles in the wall of container
Matter consists of tiny particles termed as
matter
atoms
ions
elements
Liquids have
Fixed shape and volume
Variable shape and volume
Variable shape but fixed volume
Fixed shape but variable volume
Liquids are
very compressible
very little compressible
incompressible
B and C both
Kinetic is a/an
Latin word
Roman word
Greek word
Arabic word
Kinetic energy is
directly proportional to temperature
inversely proportional to temperature
directly proportional to friction
inversely proportional to heat
Intermolecular forces can be defined as
force between two solids
force between two substances
force between two atoms or molecules
force between liquid and gas
In solid the particles are
closely packed
free to move
irregularly packed
far apart
In solid the particles
move randomly
vibrate about fixed position
vibrate and move randomly
move about fixed path
In liquids the particles
move randomly with unlimited space
move randomly with limited space
vibrate at a fixed position
vibrate randomly with unlimited space
In liquids that particles are
firmly packed
regularly packed
irregularly packed
far apart
In gases, the pressure is
directly proportional to volume
inversely proportional to volume
directly proportional to friction
inversely proportional to heat
In gases the particles are
closely packed
not free to move
regularly packed
far apart
In gases the particles
move randomly with unlimited space
move randomly with limited space
vibrate at a fixed position
vibrate randomly with unlimited space
If we increase the pressure, the volume of the gas would
increase
decrease
remain same
vary
If the temperature of the gas is increased, the kinetic energy would
increase
decrease
remain same
increase and decrease both
If the car tires are hot, the pressure of gas molecules in them would be
high
low
same as before heating
may be high or low
Gases have
Fixed shape and volume
Variable shape and volume
Variable shape but fixed volume
Fixed shape but variable volume
Gases have
low density
ductility
brutality
high density