Questions Q1. How many calories would be needed to vaporize 200.00 g water that you heated to its boiling point? Heat of vaporization for water is 540 cal/g. Show work Q2. What is the total amount of calories needed to 1) heat 200.00 g f water from 21.5 °C to its boiling point, and 2) to vaporize it? Show work
Questions Q1. How many calories would be needed to vaporize 200.00 g water that you heated to its boiling point? Heat of vaporization for water is 540 cal/g. Show work Q2. What is the total amount of calories needed to 1) heat 200.00 g f water from 21.5 °C to its boiling point, and 2) to vaporize it? Show work
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![CHM 731A Lab 7 - 2021SP
The amount of energy needed to convert a solid into a liquid or a liquid back
into a solid is called the heat of fusion. For water, this value is 80 calories per
gram. The amount of energy needed to convert a liquid into a gas or a gas back
into a liquid is called the heat of vaporization. For water, this value is 540
calories per gram.
Questions
Q1. How many calories would be needed to vaporize 200.00 g water that you heated
to its boiling point? Heat of vaporization for water is 540 cal/g. Show work
Q2. What is the total amount of calories needed to 1) heat 200.00 gf water from 21.5
°C to its boiling point, and 2) to vaporize it? Show work
Q3. Compare the magnitudes of heat calories needed to heat 200.00 g water from 21.5
°C to its boiling point, and to vaporize all 200.00 g at its boiling point. Which one is
bigger?
Q4. Why burning from steam at 100°C and a lot worse that burning from water at
100°C?
Lab 7 pg. 7](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb1e40381-1dad-4a2e-9ce1-f1ef8f4ebc92%2F15dbf9e7-895e-4b98-8f36-c4349f8cbaaa%2F82r9ch_processed.jpeg&w=3840&q=75)
Transcribed Image Text:CHM 731A Lab 7 - 2021SP
The amount of energy needed to convert a solid into a liquid or a liquid back
into a solid is called the heat of fusion. For water, this value is 80 calories per
gram. The amount of energy needed to convert a liquid into a gas or a gas back
into a liquid is called the heat of vaporization. For water, this value is 540
calories per gram.
Questions
Q1. How many calories would be needed to vaporize 200.00 g water that you heated
to its boiling point? Heat of vaporization for water is 540 cal/g. Show work
Q2. What is the total amount of calories needed to 1) heat 200.00 gf water from 21.5
°C to its boiling point, and 2) to vaporize it? Show work
Q3. Compare the magnitudes of heat calories needed to heat 200.00 g water from 21.5
°C to its boiling point, and to vaporize all 200.00 g at its boiling point. Which one is
bigger?
Q4. Why burning from steam at 100°C and a lot worse that burning from water at
100°C?
Lab 7 pg. 7
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