Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 5

Gases (Test 2)

QuestionAnswer
Which four variables are necessary to describe any gas? pressure, volume, # of moles, and temperature
What is the equation of pressure? pressure = (force/area)
What is the SI unit of force? N (newton)
What is the SI unit of area? m^3
One atmosphere is equal to how many Torr? 766 torr = 1 atm
One Torr is equal to how many millimeters of mercury? 1 mm Hg = 1 torr
What does Boyle's Law state? Under constant temperature conditions, P1V1 = P2V2.
What does Charles's Law state? Under constant pressure conditions, V1/T1 = V2/T2.
What does Avogadro's Law state? Under constant pressure and temperature conditions, V1/n1 = V2/n2.
For gases that are measured at the same temperature and pressure, what do balanced chemical equations give us? # mol
The molar volume of a gas at STP is what? 22.4 L
What is STP (standard temperature and pressure)? 273K and 1 atm
What is the Ideal Gas Law? PV=nRT
What is the Combined Gas Law? P1V1/n1T1 = P2V2/n2T2
What is the equation for molar mass, given density, temperature, and pressure? Molar mass = dRT/P
What is Dalton's Law of Partial Pressures? Ptot = Pa + Pb + Pc + Pd + ... Pa = (Xa)(Ptot) where Xa = na/ntot
What are first three postulates of the Kinetic Molecular Theory? 1. Gases consist of individual particles in constant random motion. 2. The volume of gas particles is extremely small compared to the volume of the container. 3. Collisions between gas particles are elastic.
What are the last two postulates of the Kinetic Molecular Theory? 4. Attractions between gas particles are extremely weak and negligible. 5. The average kinetic energy of gas particles depends only on temperature and is directly proportional to temperature.
What is the equation for kinetic energy? KE = (1/2)(m)(V^(2))
diffusion the spontaneous spreading of one substance through another
effusion when gas particles escape from a container through a tiny opening
What is Graham's Law of Effusion? r1/r2 = sqrt((m2/m1))
rate distance/time
ideal gas a gas that obeys the Ideal Gas Law
Most gases deviate from ideal behavior when? at low temperature and high pressure
Gases behave most ideally when? at high temperature and low pressure
The van der Waals equation does what? attempts to correct the ideal gas law for real gases; it adjusts for pressure and volume.
Created by: 2nenogirl
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards