4. When 15.0 g of steam drops in temperature from 275.0 °C to 250.0 °C, how much heat energy is released? (Cp of H2O = 4.184 J/g °C)

5. How much heat (in J) is given out when 85.0 g of lead cools from 200.0 °C to 10.0 °C? (Cp of Pb = 0.129 J/g °C)

6. A certain mass of water was heated with 41,840 Joules, raising its temperature from 22.0 °C to 28.5 °C. Find the mass of the water, in grams. (Cp of H2O = 4.184 J/g °C)
7. How many joules of heat are needed to change 50.0 grams of ice at -15.0 °C to steam at 120.0 °C? (Cp of H2O = 4.184 J/g °C)
8. Calculate the number of joules given off when 32.0 grams of steam cools from 110.0 °C to ice at -40.0 °C. (Cp of H2O = 4.184 J/g °C)
9. The specific heat of ethanol is 2.46 J/g oC. Find the heat required to raise the temperature of 193 g of ethanol from 19oC to 35oC.
10. When a 120 g sample of aluminum (Al) absorbs 9612 J of energy, its temperature increases from 25oC to 115oC. Find the specific heat of aluminum.

Respond to at least 2 other posts from learners and/or the instructor (Response Posts).
The first contribution (Main Post or Response Post) must be posted before midnight (Central time) on Friday of each week.
Two additional responses are required after Friday of each week.
For DB assignment prompts with a Part One and Part Two, Part One should be addressed in the first week of the unit with a Main Post and minimum of 2 Response Posts, and Part Two should be addressed in the second week of the unit with a Main Post and a minimum of 2 Response Posts.
More on DBs
At the end of each unit, DB participation is assessed based on level of engagement and the quality of the contribution to the discussion. DBs allow learners to learn through sharing ideas and experiences as they relate to course content. Because it is not possible to engage in two-way dialogue after a conversation has ended, no posts to the DB are accepted after the end of the unit. Learners must demonstrate an appropriate depth of understanding of course content to receive credit for having submitted substantive posts. Typically, this is achieved with 3–4 strong paragraphs for Main Posts and 2–3 strong paragraphs for Response Posts.
Obtain a copy of a Comprehensive Annual Financial Report (CAFR) for a state or local government for which you would have an interest. Answer the following questions regarding that report:
What information is included?
Is there any information that you find particularly interesting or unique to this entity?
What do you consider to be the most useful statistical information, and why?
Overall, do you feel that this section allows you to better understand the financial status of the governmental entity, or do you feel the information is marginal and should be eliminated?
D