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Chapter 9

dealing with heat and thermal energy

QuestionAnswer
Heat flows from _____ to ______ hot; cold
Kinetic-molecular model: Atoms, molecules,ions,and their subatomic particles are in constant motion.
Internal energy potential engery + kinetic energy =
Thermal energy is the sum of all the kinetic energies of its particles. Only part of internal energy
Temperature the adverage kinetic energy of its atoms and molecules
Fiducial Points fixed, precisely known, and easily reproducable temperature values
Kelvin NO negative values K= C+ 273
Celsius 5/9(Fahrenheit- 32)
Fahrenheit 9/5 Celsius + 32
Electrical resistance increases with increasing temperature because the electrons can move more randomly.
Thermal expansion happens on the particle level. Particles gain energy and can move from each other more as a result causing the object to literally get bigger and gain volume.
Viscosity the measure of the resistance of liquid to flow. Decreases with increasing temperature.
Heat the quantity of thermal energy that flows from one place to another
Conduction when 2 objects of DIFFERENT temperatures touch, thermal energy moves from the hotter to the cooler
Thermal equilibrium when the heat moves from hotter to cooler and the baleances out
Diamond The biggest natural conductorof thermal energy
Convection thermal energy carried form one location to another by FLUID
Metals good conducotrs of thermal energy
Convection current cold fluid sinks because they are more dense
Radiation thermal energy that radiates from the source outward
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Specific Heat Capacity the heat capacity per gram of material
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Specific Heat Capacity the heat capacity per gram of material
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Specific Heat Capacity the heat capacity per gram of material
Insulators hold heat in
Insulators hold heat in
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Specific Heat Capacity the heat capacity per gram of material
Freezing the phase change as a substance changes from a liquid to a solid
Condensation is the phase changes as a substance changes from a gas to a liquid
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Sublimation is the phase change as a substace changes from a solid to a gas. ( without passing through the liquid phase)
Vaporization is the phase change as a substance changes from a liquid to a gas
Specific Heat Capacity the heat capacity per gram of material
Sublimation is the phase change as a substace changes from a solid to a gas. ( without passing through the liquid phase)
Insulators hold heat in
Triple point the temperature and pressure at which the solid, liquid, and gas phases exist simultaneously
Melting is the phase changes as a substance changes from a solid to a liquid
Critical point the temperature above which a substance will always be a gas regardless of the pressure
Triple point the temperature and pressure at which the solid, liquid, and gas phases exist simultaneously
Condensation is the phase changes as a substance changes from a gas to a liquid
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium
Critical point the temperature above which a substance will always be a gas regardless of the pressure
Vaporization is the phase change as a substance changes from a liquid to a gas
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium
Specific Heat Capacity the heat capacity per gram of material
Sublimation is the phase change as a substace changes from a solid to a gas. ( without passing through the liquid phase)
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium
Freezing the phase change as a substance changes from a liquid to a solid
Deposition is the phase change as a substance changes from a gas to a solid
Melting is the phase changes as a substance changes from a solid to a liquid
Triple point the temperature and pressure at which the solid, liquid, and gas phases exist simultaneously
Condensation is the phase changes as a substance changes from a gas to a liquid
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium
Vaporization is the phase change as a substance changes from a liquid to a gas
Sublimation is the phase change as a substace changes from a solid to a gas. ( without passing through the liquid phase)
Deposition is the phase change as a substance changes from a gas to a solid
Triple point the temperature and pressure at which the solid, liquid, and gas phases exist simultaneously
Critical point the temperature above which a substance will always be a gas regardless of the pressure
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium
Insulators hold heat in
Heat Capacity the relationship between the amount of thermal energy absorbed and the temerature changes caused by this.
Specific Heat Capacity the heat capacity per gram of material
Freezing the phase change as a substance changes from a liquid to a solid
Melting is the phase changes as a substance changes from a solid to a liquid
Condensation is the phase changes as a substance changes from a gas to a liquid
Vaporization is the phase change as a substance changes from a liquid to a gas
Sublimation is the phase change as a substace changes from a solid to a gas. ( without passing through the liquid phase)
Deposition is the phase change as a substance changes from a gas to a solid
Triple point the temperature and pressure at which the solid, liquid, and gas phases exist simultaneously
Critical point the temperature above which a substance will always be a gas regardless of the pressure
Freezing point the temerature at which the solid and liquid phases of a substance are in equilibrium at atmospheric pressure
Boiling point the temperature at which the vapor pressure of a liquid is equal to the pressure on the liquid
Created by: iswim4gold
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