1. Science Starters What is the difference between TEMPERATURE and HEAT?
8/4/2019

2. Science Starters
8/4/2019
How much heat is absorbed by 320 mL of water when its temperature is raised from 20. C to 55 C?

3. Science Starters
8/4/2019
If 100. mL of water in a calorimeter increases 10.0 C when Mg reacts with HCl, then what is the heat of reaction (qrxn)?

4. Science Starters
Calculate the H for: 2Al + Fe2O3 2Fe + Al2O3 Given that, 2Al + (3/2)O2  Al2O3 H = kJ 2Fe + (3/2)O2 Fe2O3 H = -824 kJ
8/4/2019

5. IR thermometer activity:
Do you think the temperatures of different surfaces in the room will be different? If not, why not? If so, which types of surfaces will be cool, warm, etc?
Hypothesis:
8/4/2019

6. Science Starters
Write the chemical equation representing the heat of combustion of candle wax, C20H42
(Hint the moles of wax in the equation must be equal to one even if this means your coefficients are not all whole numbers)
8/4/2019

7. Science Starters
8/4/2019
What must be the sign of H and S if a reaction is said to be spontaneous at any temperature?

8. 8/4/2019

9. Science Starters
8/4/2019
Find H for the reaction below: H2(g) + ½ O2(g)  H2O(l)

10. Science Starters
8/4/2019
What is the accepted value for the heat of fusion of ice (water)?