Unit 5
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卡片预览 (24 张)
Are gas particles in a state of constant motion?
Yes
What is most of the volume of a gas?
Empty space
Is there any force attraction between gas particles, or between the particles and the walls of the container?
No
Our collisions between gas particles or the walls perfectly elastic
Yes
What does the average kinetic energy of a collection of gas particles only depend on
The temperature of the gas
Temperature definition
Average kinetic energy of a sample particles higher temperature equals greater motion
True or false gases at the same temperature have the same average kinetic energy
True
More collisions causes
Higher pressure
Our temperature and pressure direct or indirect
Direct
Are pressure and volume direct or indirect
Indirect
Are volume and temprarure direct or indirect
Direct
Diffusion
Particles move from an area of high concentration to an area of low concentration until equilibrium is reached
True or false more energetic particles can transfer energy through collisions to less energetic ones
True
Effusion
When a gas passes through a small hole or opening later, mass are able to defuse more quickly than heavier ones
True or false the higher up you go the lower the pressure
True
What will not double the pressure of a gas sample
Doubling the Celsius
If two different gasses are at 4 mol do they have the same volume
Yes
True or false every o2 molecule will move same speed
False
True or false every o2 molecule will have same average kinetic energy
True
O2 and h2 will have same avg speed true or false e
False
O2 and h2 will have same avg kinetic energy true or false e
True
STP=
1atm and 0c
When can you use 22.4 conversion
At stp
Divide or multiply to get from L to mol
Divide