Homework answers / question archive / Unit 5A: Energy Transfer Summative Assessment (CP) Construction of a Patio Red Hawk Patios has been hired by Horizons Retirement to build a 100 square Foot outdoor patio in a nursing home Facility

Unit 5A: Energy Transfer Summative Assessment (CP) Construction of a Patio Red Hawk Patios has been hired by Horizons Retirement to build a 100 square Foot outdoor patio in a nursing home Facility

Chemistry

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Unit 5A: Energy Transfer Summative Assessment (CP)

Construction of a Patio

Red Hawk Patios has been hired by Horizons Retirement to build a 100 square Foot outdoor patio in a nursing home Facility.

Things to keep in mind:

• Materials with high specific heat capacity warm up slowly AND cool down slowly
• Material with low specific heat capacity warm up quickly AND cool down quickly

Your Task

You will calculate and analyze energy transfer for different materials to determine which material would be best for the patio.

Part 1: Data Analysis

• Analyze the specific heat capacity of 3 materials

Part 2: Draw a model to diagram the transfer of energy in this scenario.

• Identify a System
• Identify its Surroundings
• An arrow to show the movement of energy
• Is the process endothermic or exothermic?

Part 3: Write an explanation discussing your reasoning for choosing each material. Reference the following pieces in your explanations.

• Discuss the energy transfer in your models in part 3
• Discuss your specific heat capacity calculations and explain how they connect to the materials chosen and the environment they would be in.

Part 1: Specific Heat Capacity Analysis

Three identical calorimeters were set up to determine the amount of energy absorbed by water from each material.

Material #1 (Finkonium)

Substance	Mass (g)	Initial Temp (°C)	Final Temp (°C)	Cp(J/g°C)
Water	130	27	36	4.18
Finkonium	23	29	36	30.3

 

Material #2 (Adamant)

Substance	Mass (g)	Initial Temp (°C)	Final Temp (°C)	Cp(J/g°C)
Water	110	32	45	4.18
Adamant	20	29	45	18.7

 

Material #3 (Cavorite)

Substance	Mass (g)	Initial Temp (°C)	Final Temp (°C)	Cp(J/g°C)
Water	125	45	62	4.18
Cavorite	25	29	62	10.8

 

Part 2: Develop a Model

Draw a model to diagram the transfer of energy between the patio and the environment

Gotta Haves: ID the system, ID the surroundings, Label endothermic and exothermic processes, arrows representing energy transfers

Part 3: Write an Explanation

Explain why you chose the material you chose for the patio.

1. Make a claim as to which material is the best For the patio.

____________________________ is the best material for the patio

2. Cite specific evidence from your data analysis in part 1 to support your claim.

3. Explain what it means to have a high specific heat capacity versus a low specific heat capacity.

4. Explain why this material would be the best to build the patio.

Grading Rubric (10 points)

Criteria	Expectation
Claim	I can develop a claim as to which material would be the best to construct a patio.
Model	I can accurately identify a system, surroundings, diagram the transfer of energy. I can define energy transfers as endothermic or exothermic.
Conclusion	I can cite specific evidence from my calculations to support my claim as to which material should be used to build a patio. I can explain how the specific heat of a substance impacts the warming and cooling of a substance in conjunction with my claim.