Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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
edit
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

KMHS_Chemistry

Chapter 10 Vocabulary: Thermochemistry

QuestionAnswer
Calorie The quantity of heat raises the temperature of 1 g of pure water.
Calorimeter An apparatus for measuring heat changes.
Calorimetry The measurement of heat changes.
Chemical Potential Energy Energy stored within the structural units of units of chemical substances.
Energy The capacity for doing work; it exists in several forms, including chemical, nuclear, electrical, radiant, mechanical, and thermal energies.
Endothermic Process Heat absorbing process.
Exothermic Process A heating dissipating process.
Enthalpy The amount of heat that a substance has at a given temperature and pressure.
Heat The energy that is transferred from one body to another because of a temperature difference.
Heat Capacity The quantity of heat required to change an object's temperature by exactly 1 degree of C.
Heat of Combustion The heat absorbed or released during a chemical reaction in which one mole of a substance is completely burned.
Heat of Reaction The heat released or absorbed during a chemical reaction; equivalent to H, the change in enthalpy.
Hess's Law of Heat Summation In going from a particular set of reactants to a particular sec of products, the enthalpy change is the same whether the reaction takes place or in a series of steps.
Joule The SI unit of energy; 4.184 joules equal 1.000 calorie.
Law of Conservation of Energy Energy is neither created or destroyed in an ordinary chemical or physical process.
Molar Heat of Fusion The energy, in kilojoules, required to melt one mole of a solid.
Molar Heat of Vaporation The energy, in kilojoules, required to vaporize one mole of a liquid.
Specific Heat Capacity The amount of heat it takes to raise the temperature of 1g of the substance 1 degree C and is measured in J/(g x 6 degrees C)
Standard Heat of Formation The change in enthalpy (H) for a reaction in which one mole of a compound is formed from its constituent elements.
Surroundings The remainder of the universe that is outside the system.
System Any part of the universe that attention is focused on.
Thermochemical Equation A chemical equation that includes the amount of heat produced or absorbed during the reaction.
Thermochemistry The study of heat changes in chemical reactions.
Universe The totality of all existing things.
Created by: KellyBeck
Popular Chemistry sets

 

 



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