Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Chemistry Ch. 5


System A specific amount of matter that is being studied
Surroundings Everything outside of the system
Open system A system that can transfer energy and matter to its surroundings
Closed system A system that can transfer energy, but not matter, to its surroundings
Isolated system A system that does not transfer energy or matter to its surroundings
Work The energy required to move and object over some distance
Equation for work w = (F)(d)
Force due to gravity F = (m)(g)
Gravitational potential energy w = (m)(g)(h)
State function The value depends only on the present state of the system, not the path it took to get there
Endothermic Heat flows into the system from its surroundings (+ΔE)(+ΔH)
Exothermic Heat flows from the system into its surroundings (-ΔE)(-ΔH)
Internal energy (E) The sum of all kinetic and potential energies of the components of the system
ΔE Change in internal energy = (initial E) - (final E)
Relating ΔE to heat and work ΔE = q + w
Enthalpy (H) A thermodynamic function used to account for the heat flow during a constant pressure process
Equation for enthalpy H = E + PV
Pressure-volume work Work performed by expansion of a gas against a resisting pressure
P-V work when pressure is constant w = –P ΔV
Calorimeter A device used to measure heat flow
Heat capacity (C) The amount of heat required to raise the temperature of a sample of matter by 1 K
Molar heat capacity (Cm) The amount of heat required to raise the temperature of one mole of a substance by 1 K
Specific heat (Cs) The amount of heat required to raise the temperature of one gram of a substance by 1 K
Equation for specific heat Cs = (q)/(mΔT)
Equation for heat gain or loss q = m x Cs x ΔT
Created by: jabflat



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:
restart all cards