Water Temperature and Heat Transfer

Water Temperature and Heat Transfer

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains a problem involving mixing two water samples with different temperatures. The goal is to determine how much water the lab partner added to the initial 90 mL of water at 58.0°C, given the final temperature of the mixture is 69.0°C. The density of water is assumed to be 1 gram per mL. The tutorial walks through the process of calculating the heat transfer for the known water sample and using that information to find the mass of the partner's water. The final result is that the partner added 170 grams of water at 75.0°C.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the initial temperature of the water in your beaker?

90.0 degrees Celsius

58.0 degrees Celsius

75.0 degrees Celsius

69.0 degrees Celsius

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the density of water assumed in this problem?

1.5 grams per mL

0.5 grams per mL

1 gram per mL

2 grams per mL

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the heat capacity of water used in the calculations?

5.19 joules per gram Kelvin

4.19 joules per gram Kelvin

3.19 joules per gram Kelvin

6.19 joules per gram Kelvin

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the initial temperature of your partner's water?

58.0 degrees Celsius

69.0 degrees Celsius

90.0 degrees Celsius

75.0 degrees Celsius

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature change (ΔT) for your water?

9 degrees Celsius

11 degrees Celsius

17 degrees Celsius

6 degrees Celsius

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much heat was transferred by your water?

6148 joules

5148 joules

4148 joules

3148 joules

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature change (ΔT) for your partner's water?

3 degrees Celsius

9 degrees Celsius

6 degrees Celsius

11 degrees Celsius

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