wha is specific latent heat?
Energy needed to change 1kg of a material from one state to another without a change in temperature.
what is specific heat capacity?
The amount of energy needed to raise 1kg of a substance by 1 degree.
What is internal energy?
Total kinetic and potential energies of all particles in a system.
what is density?
The mass of a substance per unit volume.
explain the particle motion in gases.
The particles are constantly moving in random directions at a range of speeds. As they move, they collide with other particles, and exert a force. Therefore putting pressure on it.
What is the net force at when parcticled collide in a sealed container?
90 degrees
when you increase temperature, what sort do you transfer energy to?
Kinetic
The temp of a gas relates to the _______ in the kinetic energy stores?
Average energy.
Wha is gas pressure?
The total force exerted by all particles of a gas inside the container that collide against the wall.
What is the specific latent heat between a liquid and a gas called?
The specific heat of vaporization.
What is the specific latent heat between a solid and a liquid?
The specific latent heat of fusion.
What is the specific latent heat for cooling?
Is the energy released by a change in state.
What is the specific latent heat for heating?
The energy needed for a change in state.
What is the arrangement, energy and density of a solid?
Strong forces hold particles in a regular fixed arrangement. They have the least energy - they vibrate around their fixed points. They are the most dense.
What is the arrangement, energy and density of a liquid?
Weather forces hold the particles close, they can move past each other, in a random arrangement. More energy than solids - move in random directions at low speeds. They are dense.
What is the arrangement, energy and density of a gas?
Weakest forces of attraction between the particles, are free to move and particles do not touch in a random arrangement. They have the most energy - they move in random directions at range of high speeds. They are the least dense.
What qualities do low specific heat capacities have?
Heat up and cool down quickly.
What qualities do high specific heat capacities have?
They require more energy and heat up or cool slowly.
What so fluid pressure?
Force is exerted to any surface in contact with the fluid.
What is the state change between solid to gas?
Sublimation
What is the state change from a gas to a liquid?
Condensing
What type of change is a state change? And what does it mean?
Is a physical change - meaning of the state change is reversed, the substance will return to its original form and its original properties.
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BIOLOGY12
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CHEMISTRY13
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PHYSICS22
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SPANISH11
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PSHCE14
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GEOGRAPHY TOPIC 1 ( GLOBAL HAZARDS )7
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GEOGRAPHY 128
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