Chapter 15 test
Help!
|
|
||||
|---|---|---|---|---|---|
| the ability to do work or produce heat | energy
🗑
|
||||
| states that energy cannot be created or destroyed | law of conservation of energy
🗑
|
||||
| energy flowing from a warmer to a cooler object | heat
🗑
|
||||
| the study of heat changes from chemical reactions and phase changes | thermochemistry
🗑
|
||||
| energy stored in a substance because of its composition | chemical potential energy
🗑
|
||||
| heat required to raise the temperature of one gram of a substance by one degree celcius | specific heat
🗑
|
||||
| an insulated device measuring the heat absorbed or released during a chemical or physical process | calorimeter
🗑
|
||||
| the system plus surroundings | universe
🗑
|
||||
| states that spontaneous processes always proceed in such a way that the entropy of the universe increases | second law of thermodynamics
🗑
|
||||
| everything in the universe other than the system | suroundings
🗑
|
||||
| the change in enthalpy in a chemical reaction | enthalpy (heat) of reaction
🗑
|
||||
| a balanced chemical equation that includes the physical states of all reactants and products and the energy change that accompanies the reaction | thermochemical equation
🗑
|
||||
| a system's heat content at constant pressure | enthalpy
🗑
|
||||
| energy required to vaporize one mole of a liquid | molar enthalpy (heat) of vaporization
🗑
|
||||
| energy required to melt one mole of a solid | molar enthalpy (heat) of fusion
🗑
|
||||
| the enthalpy change for the complete burning of one mole of a substance | enthalpy (heat) of combustion
🗑
|
||||
| the SI unit of heat and energy | joule
🗑
|
||||
| how many calories does one joule equal? | 1 joule = .2390 calories
🗑
|
||||
| how many joules are in 1KJ? | 1000J = 1KJ
🗑
|
||||
| energy needed to raise the temperature of 1g of pure water to 1 degree celcius | calorie
🗑
|
||||
| how many calories are in one Calories (kilocalorie)? | 1000 calories = 1 Calorie
🗑
|
||||
| how many joules are in one calorie? | 1 calorie = 4.184 joules
🗑
|
||||
| what does each letter represent in the equation q = mcΔT? | m = mass
c = specific heat
triangle = delta
🗑
|
||||
| enthalpy is negative and energy is a product | exothermic
🗑
|
||||
| enthalpy is positive and energy is a reactant | endothermic
🗑
|
||||
| specific part of the universe that contains the reaction of process you wish to study | system
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Normal Size Small Size show me how
Created by:
random567