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# Gas Behavior

### CAVA Chem s2d02 1.02 Behavior of Gasses

Matter exists in several states: solid, liquid, [...], and plasma Matter exists in several states: solid, liquid, gas, and plasma
gases have mass, but they have no definite [...] or volume gases have mass, but they have no definite shape or volume
gas molecules collide with the walls of the balloon and exert force. We call that force [...]. gas molecules collide with the walls of the balloon and exert force. We call that force pressure.
Pressure is defined as [...] per unit area. Pressure is defined as force per unit area.
The metric system's unit of pressure is the [...]. The metric system's unit of pressure is the pascal.
Because atmospheric pressure was first measured with a mercury barometer, you may see pressure measured in units of millimeters of [...]. Because atmospheric pressure was first measured with a mercury barometer, you may see pressure measured in units of millimeters of mercury.
[...] are compressible Gases are compressible
Another behavior of a gas is that the volume changes directly with [...]. Another behavior of a gas is that the volume changes directly with temperature.
As you change the amount of gas in a fixed volume, you change the [...]. As you change the amount of gas in a fixed volume, you change the pressure.
[...] molecules can move from one side of a room to the other. Gas molecules can move from one side of a room to the other.
a net movement of the molecules from an area of higher concentration (the onion) to an area of lower concentration (the opposite side of the room) is called [...]. a net movement of the molecules from an area of higher concentration (the onion) to an area of lower concentration (the opposite side of the room) is called diffusion.
[...] and [...] diffuse (spread out). gasses and liquids diffuse.
Chemists chose a standardized temperature and pressure of 273 K ([...]°C) and 100 kPa (1 atm) Chemists chose a standardized temperature and pressure of 273 K (0°C) and 100 kPa (1 atm)
When the particles [...] with something, they transfer energy. When the particles collide with something, they transfer energy.
Particles of a gas (or of a liquid or solid) are in constant [...]. Particles of a gas (or of a liquid or solid) are in constant motion.
kinetic energy = [...] energy kinetic energy = movement energy
The kinetic energy is proportional to the [...]. The kinetic energy is proportional to the temperature.
Gases are made of empty [...] and of particles, atoms or molecules. Gases are made of empty space and of particles, atoms or molecules.
Because gases are mostly empty space, they are [-ible]. Because gases are mostly empty space, they are compressible.
Matter exists in several states: [...], liquid, gas, and plasma Matter exists in several states: solid, liquid, gas, and plasma
Matter exists in several states: solid, [...], gas, and plasma Matter exists in several states: solid, liquid, gas, and plasma
gases have mass, but they have no definite shape or [...] gases have mass, but they have no definite shape or volume
Pressure is defined as force per unit [...]. Pressure is defined as force per unit area.
Chemists chose a standardized temperature and pressure of 273 K (0°C) and [...] kPa (1 atm) Chemists chose a standardized temperature and pressure of 273 K (0°C) and 100 kPa (1 atm)
Chemists chose a standardized temperature and pressure of 273 K (0°C) and 100 kPa ([...] atm) Chemists chose a standardized temperature and pressure of 273 K (0°C) and 100 kPa (1 atm)
Created by: mr.shapard