quiz 21 Flashcards
Which states of matter can be compressed
Gas
State the equation linking density,mass and volume using symbols
m=pV
What piece of equipment is used to measure mass?
mass balance
On a cooling or heating curve, what is happening in the sloping sections?
Change of temperature
Describe the motion and kinetic energy of the particles in a solid
Vibrate about fixed positions, low kinetic energy
increasing the temperature of a gas ________
the gas pressure
Increases
Define the specific latent heat of vaporisation of a substance
Amount of energy needed to boil 1kg of the substance with no change in temperature
What symbol is used instead of writing words specific latent heat
L
Which state changes can occur when a substance is cooled?
condensing and freezing
Which state of matter is usually the best conductor of heat and electricity?
Solid
On a cooling or heating curve, what is happening in the horizontal sections?
change of state at constant temperature
Describe the forces between particles in a solid
strong forces of attraction
Why do substances have different melting points?
Different forces between particles
When the volume of a substance increases due to an increase in tempreature the substance has
Expanded
When the pressure outside a closed container is much bigger than the pressure inside the container,what can happen
Implosion/collapse
