Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Thermochemistry Game

No description
by

Will Chou

on 31 October 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Thermochemistry Game

ThermoChemistry
Memory Aids

1) Acronyms
-Help you remember content that has a lot of information
-When you associate something with a sentence/word, will be much faster way to memorize + recall content


Intermediate Questions
WUDDUP
NUTTIN
Difficult Questions .
BARE GUAP #blessed
BONUS:
if /\G=0 during a state change, then find the temperature of the condensation point of hydrogen peroxide using the Gibbs Energy Equation given:
/\Hf for H2O2 (g)= -136.3KJ/mol /\Hf for H2O2 (l)=-187.8KJ/mol
/\S for H2O2 (g)= +233J/molK /\Sfor H2O2 (l)=+109.6J/molK
Changes in Matter and Energy
Is gasoline burning in a car engine:
a) closed system
b) open system
c) isolated system


Chemical:

PHYSICAL:

NUCLEAR:
T
arnish
H
oward (hardness)
F
orming
R
eact
M
akes (Malleability)
I
sotopes
E
xplode
C
olourful (Colour)
[or]

C
orrode
C
upcakes (Conductivity)
N
ew

O
ccasionally (Odour)
E
lements
D
uring (Density)
C
razy (Change of State)

D
ays (Ductility)
Basic Questions
Changes in Matter and Energy
Changes in Matter and Energy
Calorimetry
THERMODYNAMICS
The energy produced by burning one 0.25g candle releases enough heat to raise the temperature of 800g of water by 50.0°C. Calculate the amount of energy that would be produced by burning a 2.35g candle.
Calorimetry
THERMODYNAMICS
Explain the following formula, q=mcΔT
Calorimetry
THERMODYNAMICS
Explain nuclear, chemical and physical change and provide an example of each.
Bill Nye the science guy heats 10 g of Methanol at 20 C. The heat transferred in the process was 250 J. What would the final temp be?
*HINT* C = 2.918 J/g C.
Ms. Baik mixes 75.0g of an unknown substance at 96.5°C with 1150g of water at 25.0°C. If the final temperature of the system is 37.1°C, what is the specific heat capacity of the substance?
REMEMBERING THE LAWS OF THERMODYNAMICS
C
onservation of Energy
A
ll changes increase entropy in Universe

T
=0 when S=0 for perfect crystalline substance
REMEMBERING PHYSICAL/CHEMICAL/NUCLEAR CHANGES
OTHER EFFECTIVE WAYS TO STUDY??
2) Make Connections with the Content (with other content or to self)
-ie linking thermodynamics to thermochemical concepts > Hess' Law to thermodynamics law ...etc
-will help you grasp content faster... it will make sense

3) Teach the Material
-best way to learn the material is to teach it. study with someone else.


OTHER EFFECTIVE WAYS TO STUDY...
4) Talk it out (in the mirror or while you study)
-You will remember it more (especially if you are an auditory learner) because you have to think before you say something out loud
5) Funnel Approach
Start with the most basic concept (i.e. what is thermochemistry) then gradually get to more specific concepts
ANALOGIES
-Help you understand the big idea to concepts
i) Ball analogy for spontaneity
ii) Deck of Cards Analogy for Entropy

Hess's Law
What is a real life analogy of Hess's Law:
A) Kicking a soccer ball in the goal, and then kicking the same soccer ball somewhere else.
B) Moving bricks through two different paths to the same location
C) A car goes forward then reverses back to same spot.
D) Eating something and throwing it up.
Standard Enthalpies of Formation
Hess's Law
TRUE/FALSE?
entropy change decreases when a solid turns into a gas.
TRUE/FALSE: Nonspontaneous reactions in endothermic reactions (with entropy<0) can become spontaneous if you increase the amount of heat supplied
Which of the following is true when /\G>0
a)it is spontaneous in forward direction only
b) it is spontaneous in forward direction and nonspontaneous in reverse
c) only happens when reaction is exothermic
d)spontaneous in reverse reaction, nonspontaneous forward
Which of the following will result in an increase in the system's entropy change?
a) when fewer number of moles of reactants form greater number of moles of products
b) decrease the temperature of a system
c) sublimation
d) Deposition
e) both a and c
f) both b and d
Graphite is a more stable form of carbon than diamond,
True or False? Explain your answer

Hess's Law
2. Hess's Law can be performed with an unbalanced equation.
A) True
B) False
Standard Enthalpies of Formation
Standard Enthalpies of Formation
Create the formation equation of glucose
Create the formation equation of cyclopropane and write down the standard molar enthalpy.
Create a set of reactions for the reaction between sodium chloride with water, and find the enthalpy change.

note: CREATE EVERYTHING YOURSELF. pg799 is your friend.

Iron(II) oxide (solid) reacts with carbon monoxide gas to produce iron and carbon dioxide gas. Calculate the standard enthalpy change for the reaction from these reactions of iron oxides with carbon dioxide.

1) 3 Fe2O3(s) + CO ---> 2 Fe3O4(s) + CO2(g) H = -47kJ
2) Fe2O3(s) + 2 CO(g) ---> 2Fe(s) + 3 CO2(g) H = -25kJ
3) Fe3O4(s) + CO(g) ---> 3FeO(s) + CO2(g) H = 19 kJ
For the three states of matter (solid, liquid, and gas), there are six possible changes. Which are exothermic and endothermic?
Full transcript