Heat Transfer
Temp/Phase Changes
Enthalpy
Hess n' Stuff
It's Me (Ya Boy)
100
What does heat measure
Energy moving from place to place
100
What kind of energy changes during a phase change?
Potential
100
A state function that describes the change in energy over the course of a process or event
Enthalpy (the general kind)
100
What does Hess's Law state?
The enthalpy of the reaction is equal to the sum of the enthalpies for the reaction steps
100
What college did I attend?
Indiana University Bloomington
200
Heat always moves in this direction
High to low
(heat always goes where it isn't)
200
Where on this image is a substance in the liquid state? (Use the letters, not the numbers)
C
200
2260 J/g
Heat/enthalpy of vaporization (for water)
200
What would a negative value for enthalpy imply?
The process is exothermic
200
What was my college major?
Chemistry
300
Going from liquid to solid requires you to _________ energy.
Remove
300
The amount of energy required to increase the temperature of one gram of a substance by one degree is called what?
Specific heat
300
The energy required to melt one gram of a substance
Heat/Enthalpy of fusion
300
To determine the heat of a reaction using enthalpy of formation, you should...
Take the Hf of the products minus the Hf of the reactants
300
I know a lot about this topic almost exclusively because I didn't have friends in middle school
Honestly there's a lot of things that could go here. I was thinking about marvel/DC comics when I wrote this initially but there's probably a lot of responses I would take here.
400
Which requires more heat to be moved into the system, melting or boiling?
Boiling
400
If I wanted to know the energy required to heat some mass of ice at -20 degrees to steam at 100 degrees, how many q's would I need to calculate?
4
400
The energy required to perform a chemical process
Standard enthalpy of reaction
400
A reaction where the products have more stored energy than the reactants would be what kind of reaction?
Endothermic
400
How long ago was the last time I intentionally lied to another person?
8.5-9 years ago
500
What is the guiding principle of calorimetry?
The heat released by the unknown should be the same as the heat entering the known (usually water)
500
If I am melting 30 grams of ice at 0 degrees, what will be the temperature after the ice is done melting?
0 degrees
500
The energy required to form one mole of a substance from it's component elements
Heat/Enthalpy of formation
500
What would you do to correct the reaction step below?6 N2O + 5O2 --> 4 N3O6
N2 + 1/2 O2 --> N2O
Flip it and multiply by 6
500
This trading card game isn't just something I enjoyed when I was younger (and still do), it helped me learn how to read
Yu-Gi-Oh