Question

question 1 (15 points)
document the temperature of each sample before mixing and the final temperature after mixing. calculate the temperature change by subtracting the initial temperature from the final temperature. copy the table and paste it into the text field below. use the table to document your data.
temperature change = final temperature − initial temperature

	cold water	cold water	cold water	cold water		hot water	hot water	hot water	hot water
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2
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Answer:

To solve this, we first need to conduct the experiment to get the mass, initial temperature, and final temperature for cold water and hot water in each trial. Then we calculate the temperature change using the formula \( \text{Temperature change} = \text{final temperature} - \text{initial temperature} \). Here is how you can fill the table (assuming you have conducted the experiment and have the data; for demonstration, we'll use sample data, but in reality, you should use your experimental values):

Step 1: Gather Experimental Data

Let's assume the following sample data (you should replace these with your actual measurements):

• Trial 1:
• Cold Water: Mass = 50 g, Initial Temp = 20 °C, Final Temp = 25 °C
• Hot Water: Mass = 50 g, Initial Temp = 80 °C, Final Temp = 25 °C
• Trial 2:
• Cold Water: Mass = 60 g, Initial Temp = 18 °C, Final Temp = 26 °C
• Hot Water: Mass = 40 g, Initial Temp = 82 °C, Final Temp = 26 °C
• Trial 3:
• Cold Water: Mass = 40 g, Initial Temp = 22 °C, Final Temp = 24 °C
• Hot Water: Mass = 60 g, Initial Temp = 78 °C, Final Temp = 24 °C
• Trial 4:
• Cold Water: Mass = 55 g, Initial Temp = 19 °C, Final Temp = 27 °C
• Hot Water: Mass = 45 g, Initial Temp = 81 °C, Final Temp = 27 °C
• Trial 6:
• Cold Water: Mass = 30 g, Initial Temp = 23 °C, Final Temp = 28 °C
• Hot Water: Mass = 70 g, Initial Temp = 77 °C, Final Temp = 28 °C
• Trial 7:
• Cold Water: Mass = 70 g, Initial Temp = 17 °C, Final Temp = 23 °C
• Hot Water: Mass = 30 g, Initial Temp = 83 °C, Final Temp = 23 °C

Step 2: Calculate Temperature Change

Using the formula \( \text{Temp Change} = \text{Final Temp} - \text{Initial Temp} \) for each sample (cold and hot water) in each trial:

• Trial 1:
• Cold Water Temp Change: \( 25 - 20 = 5 \) °C
• Hot Water Temp Change: \( 25 - 80 = -55 \) °C
• Trial 2:
• Cold Water Temp Change: \( 26 - 18 = 8 \) °C
• Hot Water Temp Change: \( 26 - 82 = -56 \) °C
• Trial 3:
• Cold Water Temp Change: \( 24 - 22 = 2 \) °C
• Hot Water Temp Change: \( 24 - 78 = -54 \) °C
• Trial 4:
• Cold Water Temp Change: \( 27 - 19 = 8 \) °C
• Hot Water Temp Change: \( 27 - 81 = -54 \) °C
• Trial 6:
• Cold Water Temp Change: \( 28 - 23 = 5 \) °C
• Hot Water Temp Change: \( 28 - 77 = -49 \) °C
• Trial 7:
• Cold Water Temp Change: \( 23 - 17 = 6 \) °C
• Hot Water Temp Change: \( 23 - 83 = -60 \) °C

Step 3: Fill the Table

Now we fill the table with the gathered data and calculated temperature changes:

Trial #	Cold Water - Mass (g)	Cold Water - Initial Temp (°C)	Cold Water - Final Temp (°C)	Cold Water - Temp Change (°C)	Hot Water - Mass (g)	Hot Water - Initial Temp (°C)	Hot Water - Final Temp (°C)	Hot Water - Temp Change (°C)
2	60	18	26	8	40	82	26	-56
3	40	22	24	2	60	78	24	-54
4	55	19	27	8	45	81	27	-54
6	30	23	28	5	70	77	28	-49
7	70	17	23	6	30	83	23	-60

Remember, the above data is for demonstration purposes. You should replace it with the actual data you obtain from your experiment. The key steps are: record the mass, initial temperature, and final temperature for each sample (cold and hot water) in each trial, then use the formula \( \text{Temp Change} = \text{Final Temp} - \text{Initial Temp} \) to calculate the temperature change for each sample and fill the table accordingly.