Last modified: Thu 10/31/2013 09:13:37 pm
BCE

Oklahoma State University

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Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


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1. Calculate the final temperature when 30.0 grams of water at 75.0 °C are mixed with 30.0 grams of water at 22.5 °C.

°C

2. Calculate the final temperature when 75.0 grams of water at 83.0 °C are mixed with 28.0 grams of water at 24.5 °C.

°C

3. Below is a table that contains data about the amount of heat different samples of water absorbed along with the initial and final temperature of the sample.

Experiment

Amount of heat added (Joules)

mass of the sample of water (g)

Initial Temperature (°C)

Final Temperature (°C)

#1

1000

10.0

20.0

43.9

#2

2000

10.0

20.0

67.8

#3

3000

10.0

20.0

91.7

#4

1000

20.0

20.0

?

#5

1700

45.0

25.0

?

a) What is the final temperature for Experiment #4?

°C

b)What is the final temperature for Experiment #5?

°C

10. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

11. If there is one question you would like to have answered in lecture, what would that question be?