Heat Equations
Lab Techniques
Heat Transfer
Reference Table
100
What is the specific heat capacity of water?
4.18 J/g*K
100
What is this instrument called?
Graduated Cylinder
100
Endothermic Vs. Exothermic
Heat enters a system and heat exits a system
100
What Table do you find chemistry formulas & equations?
Table T
200
Which formula is needed to calculate the energy required for the phase change between B & C?
q = mHf
200
What is this instrument called?
Beaker
200
is photosynthesis an endothermic or exothermic process?
Endothermic
200
What is the specific heat capacity equation?
300
How many joules of energy are needed to increase the temperature for a cup holding 10 grams of water from 50oC to 60oC.
418 J of energy!
300
What are the two units of temperature in chemistry?
Degrees Celsius + Kelvin
300
During an endothermic process, what happens to the temperature of the surrounding?
Temperature Decreases
300
Where do you find the constants for water?
Table B
400
What does the specific heat capacity (4.18 J/goC) of water actually means?
4.18 Joules of energy is required to change the temperature of 1 grams of water by 1 oC.
400
When measuring a substance on a weight boat, what should you do after turning on the scale?
Place the weigh boat on the scale and then press Zero or Tare!
400
Identify three phase changes that are exothermic.
1. Freezing
2. Condensation
3. Deposition
400
If a substance is condensing, which heat formula would you use?
500
A sample of water has a temperature increase of 10oC by the addition of 20 J of energy. Calculate the mass of the water.
0.478 grams
500
How do you calculate the heat released by a food when using a calorimeter?
1. Measure the initial temperature of the water
2. Measure the final temperature of the water
3. Convert mL to grams, by using the 1:1
4. Use heat formula and the specific heat capacity of water.
500
Is the formula an example of an endothermic or exothermic process? 
Exothermic because enthalpy is negative.
500
What is the formula for temperature when solving for degrees Celsius?
oC = K - 273