Kinetic Molecular Theory & Unit Conversions: Pressure & Temp

Of these three states of matter, which one has the most kinetic energy? 

• Solid 
• Liquid 
• Gas

Tags

NGSS.HS-PS3-2

A 40.8 mol sample of methane gas, CH4 (g), is placed in a 1020 L container at 298 K. What is the pressure, in atm, of methane gas?

• 0.2 atm
• 0.4567 atm  
• 0.978 atm 
• 1.980 atm 

As the temperature increases so does the.. 

• Potential Energy 
• Kinetic Energy  

Tags

NGSS.HS-PS3-4

4 different flasks contain gas sample at 298 K, which of the following samples will the gas molecular be moving the slowest?  

• N2 
• O2 
• H2 
• CO2 

Convert 27 C to K

• 300
• 301
• 305
• 368

What is Diffusion?

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

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

Increased concentration of gas?

• fewer collisions, No change in means free path 
• More collisions, increase means free path
• More collisions, decreases means free path

Tags

NGSS.HS-PS1-5

A 500.0 mL, deceases mean free path 20.0 c and 720.0 mm Hg, what is the volume?

• 0.441 L 
• 5.783 L
• 8.192 L
• 0.817

An unknown gas has a density of 3.167 g/L at STP. What is the identity of the gas?

• Ar
• O2 
• Cl2
• HF