Calculate the pressure ( in atm) at which the freezing temperature of water is -20°C = 253 K H₂O(s) → H₂O(1) AH°ƒ ( = AH°) = 6010 J/mole at T = 273 K, P = 1 atm (fusion = melting) V solid 1.963x10-5 m³/mole Vliquid 1.800x10-5 m³/mole = = Assume AH°f, Av₁ = V₁ - V₁ are constant · · 1 atm = 1.013x105 Pa Caution: signs and units
Calculate the pressure ( in atm) at which the freezing temperature of water is -20°C = 253 K H₂O(s) → H₂O(1) AH°ƒ ( = AH°) = 6010 J/mole at T = 273 K, P = 1 atm (fusion = melting) V solid 1.963x10-5 m³/mole Vliquid 1.800x10-5 m³/mole = = Assume AH°f, Av₁ = V₁ - V₁ are constant · · 1 atm = 1.013x105 Pa Caution: signs and units
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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![Calculate the pressure (in atm) at which the freezing temperature of water is -20°C = 253 K.
H₂O(s)→ H₂O(l) AH°f (= AHM)
V solid
1.963x10-5 m³/mole
Vliquid 1.800x10-5 m³/mole
=
=
=
Caution: signs and units
6010 J/mole at TM = 273 K,
(fusion = melting)
Assume AH°f, Av₁ = V₁ - Vs are constant · ·
1 atm
=
1.013x105 Pa
= 1 atm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d5954fb-d2b2-496d-a418-a5c577f57b02%2Fadb1e155-8ba8-477d-afaa-9af0083cadb1%2Fk2oz9lq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Calculate the pressure (in atm) at which the freezing temperature of water is -20°C = 253 K.
H₂O(s)→ H₂O(l) AH°f (= AHM)
V solid
1.963x10-5 m³/mole
Vliquid 1.800x10-5 m³/mole
=
=
=
Caution: signs and units
6010 J/mole at TM = 273 K,
(fusion = melting)
Assume AH°f, Av₁ = V₁ - Vs are constant · ·
1 atm
=
1.013x105 Pa
= 1 atm
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