KMT Solids, Liquids, Gases

At what temperature do nitrogen molecules move fastest?

• 350 K
• 300 K
• 250 K
• 200 K

Tags

NGSS.HS-PS3-2

Pressure is caused by ______.

• gravity.
• gas molecules colliding with each other.
• gas molecules colliding with surfaces of the container.
• gas molecules reacting with each other.

Gas molecules can easily be compressed  because ___________. 

• gas molecules are soft
• gas molecules are far apart
• gas molecules follow the shape of the container

According to the kinetic molecular theory collisions between gas particles are perfectly elastic.

• True

• False

Under what conditions do real gases behave as close to ideal as possible?

• Low pressure and High temperature

• Low temperature and Low pressure

• Low temperature and high pressure

• High temperature and high pressure

Particles that make up a solid have the _____________ attraction toward each other. 

• strongest
• weakest

Tags

NGSS.HS-PS1-3

Liquids are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

Tags

NGSS.MS-PS1-4

Solids are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

What is Effusion?

• The passage of a gas through a tiny hole into an evacuated chamber
• The movement of a substance from higher concentration to a lower concentration

Hydrogen bonding occurs when hydrogen is bonded to N, O, or F.  Which of the following has hydrogen bonding?

• CBr₄
• NO₂
• H₂S
• NH₃