P P1 - Particle model of matter Flashcards
What happens to the temperature when work is done?
When you do work, the temperature will increase as kinetic energy increases
What happens to the pressure when you reduce the volume of a fixed mass of gas?
Reducing the volume of a mixed mass of gas increases its pressure
What happens to the pressure when you halve the volume of a fixed mass of gas?
When you halve the volume in a fixed mass of gas, the pressure will double
What is specific heat capacity?
Specific heat capacity is the energy required to raise 1kg of a substance by 1-degree Celcius
What is specific latent heat?
Specific latent heat is the energy needed to change 1kg of a substance’s state
What is specific latent heat of fusion?
Specific latent heat of fusion is the energy required to melt or condense 1 kg of a substance
What is specific latent heat of vapourisation?
Specific latent heat of vapourisation is the energy required to boil or evaporate 1 kg of a substance
What is the particle arrangement of solids?
In solids, the particles are in fixed positions in regular structures, where strong forces are holding them together
What is the particle arrangement of liquids?
In liquids, particles are close together but flow between one another
What is the particle arrangement of gases?
In gases, the particles are separated and free, as their forces are weak
What are the properties of solids?
Solids are difficult to change in shape, and they have strong intermolecular forces
What are the properties of liquids?
Liquids can change shape but are difficult to compress
What are the properties of gases?
Gases can expand to fill a space and are easy to compress and have lots of energy
What is internal energy?
Internal energy is the total kinetic and potential energy of all the particles in a system
