61.
During the process of freezing, a liquid
A
loses kinetic energy.
B
loses potential energy.
C
gains potential energy.
D
gains kinetic energy.
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During the process of freezing, a liquid
loses kinetic energy.
loses potential energy.
gains potential energy.
gains kinetic energy.
By which process do gases take the shape of their container?
evaporation
expansion
adhesion
diffusion
At pressures greater than 1 atm, water will boil at
a temperature higher than 100 degree Celcius.
a temperature lower than 100 degree Celcius.
100 degree Celcius.
4 degree Celcius.
Any sample of matter has mass and takes up space. The main reason for this is because:
All matter is heavy
Matter can be a gas
Matter is made up of tiny particles that have mass and take up space
The Earth is made of matter
An ideal gas is a hypothetical gas
not made of particles.
that conforms to all of the assumptions of the kinetic theory.
whose particles have zero mass.
made of motionless particles.
According to the kinetic-molecular theory, which substances are made of particles?
gases only
liquids only
all matter
all matter except solids
According to the kinetic-molecular theory, particles of matter are in motion in
gases only.
gases and liquids only.
solids, liquids, and gases.
solids only.
According to the kinetic-molecular theory, particles of matter
are in constant motion.
have different shapes.
have different colors.
are always fluid.
According to the kinetic-molecular theory, particles of an ideal gas
attract each other but do not collide.
repel each other and collide.
neither attract nor repel each other but collide.
neither attract nor repel each other and do not collide.
According to the kinetic-molecular theory, how does a gas expand?
Its particles become larger.
Collisions between particles become elastic.
Its temperature rises.
Its particles move greater distances.
A solid forms when the average energy of a substances particles
increases.
decreases.
decreases then increases.
creates a random arrangement.
A real gas
does not obey all the assumptions of the kinetic-molecular theory.
consists of particles that do not occupy space.
cannot be condensed.
cannot be produced in scientific laboratories.
When an iron bar is heated it gets longer. This is because the particles in the bar
change shape
get bigger
get closer together
move further apart
Particles have random motion. This means
the particles always travel in straight lines
the particles stand still
the path of the particles cannot be predicted
the path of the particles are curved
On a cold, damp morning there is mist in a garden. Mist is a mixture of
a liquid and a gas
a liquid and a solid
a solid and a gas
two different liquids
In a solid substance the particles
are far apart
change size
do not move
touch
In a gas the particles
are far apart
change size
are close together
move slowly
During heat conduction in solids
the energy in the particles expands
the particles get cooler
the particles lose energy
the particles pass on energy by colliding
Diffusion provides evidence that
all matter is made from particles
particles collide
particles have different sizes
particles move by themselves
Choose the statement that is incorrect.
All substances are made of particles.
Matter contains particles.
Solids, liquids and gases are called the three states of matter.
Some liquids do not contain particles.