Chapter 8
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What are gases?
state of matter where atoms of a substance move freely and fill their container
What are gases in terms of volume and shape?
no fixed volume and shape
What do gases do in containers?
uniformly fill them
Are gases easily compressible?
yes
How do gases mix with other gases?
uniformly mix
What do gases exert for pressure?
Exert pressure on their surroundings
What’s the equation for pressure?
force / area
What are the units for pressure?
atmospheres (atm), mmHg, Torr, Pascal (Pa)
What is atmospheric pressure?
is the force exerted on a surface by the air above it due to gravity
What are the variables associated with gases?
pressure, temperature, volume, moles
What is STP defined as?
standard temperature and pressure as 273.15 K and 1 atm
What is Boyle’s Law?
P1V1 = P2V2
What is constant in Boyle’s Law?
constant temp
What is Gay-Lussac’s Law?
P1/T1 = P2/T2
What is the concept behind Boyle’s Law?
When volume decreases, pressure increases which mean Particles hit the container walls more often
What is the concept behind Gay-Lussac’s Law?
When temperature increases, pressure also increases
What is constant in Gay-Lussac’s Law?
constant volume and amount of gas
What is Charle’s Law?
V1/T1 = V2/T2
What is the concept behind Charle’s Law?
when temperature increases, volume must also increase
What is constant in Charle’s Law?
pressure and amount of gas
What is Avogadro’s Law?
v1/n1 = v2/n2
1 mol of ideal gas =
22.4 L
What is the concept of Avogadro’s Law?
Equal volumes of gas contain the same number of particles at the same temperature and pressure
To have an ideal gas, what must the motion of the particles be?
random