Compounds such as CC1₂F₂ are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl₂ F2 is 289 J/g. Part A What mass of this substance must evaporate to freeze 160 g of water initially at 23 °C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/(g-K).) Express the mass in grams to two significant digits. - ΑΣΦ ? m = Submit Request Answer g

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.3: Energy And Changes Of State
Problem 1RC: 1. Which of the following processes requires the largest input of energy as heat? raising the...
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Compounds such as CCl₂ F₂ are known as
chlorofluorocarbons, or CFCs. These compounds were once
widely used as refrigerants but are now being replaced by
compounds that are believed to be less harmful to the
environment. The heat of vaporization of CC1₂F2 is 289 J/g.
Part A
What mass of this substance must evaporate to freeze 160 g of water initially at 23 °C? (The heat of fusion of water is 334 J/g; the specific heat of
water is 4.18 J/(g-K).)
Express the mass in grams to two significant digits.
15| ΑΣΦ
?
m =
Submit
Request Answer
Transcribed Image Text:Compounds such as CCl₂ F₂ are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CC1₂F2 is 289 J/g. Part A What mass of this substance must evaporate to freeze 160 g of water initially at 23 °C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/(g-K).) Express the mass in grams to two significant digits. 15| ΑΣΦ ? m = Submit Request Answer
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