111609a - Heating Curve Heating Curve 100 g of ice is...

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Heating Curve
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Heating Curve y 100 g of ice is initially at -50 o C, how much energy is required to make it steam at 150 o C?
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In the figure below what is the vapor pressure of C 2 H 5 OH? 760 t orr 6 5 to rr 4 o 24 to 4% 8% 18% 69% 1. 760 torr 2. 65 torr 3. 545 torr 4. 24 torr
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Phase Diagrams y A general phase diagram – summarizes phase changes as a function of temperature and pressure y Features of a phase diagram – { Area: values of P and T where only one phase exists { Line: values of P and T where two phases can exist at one time { Point: values of P and T where three phases can exist at one time
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Phase Diagrams y Critical Point – where the line between liquid and gas phases terminates, above this point the liquid and gas phases are indistinguishable { Critical Temperature: the temperature above which the vapor cannot be distinguished from the liquid { Critical Pressure: the pressure required to liquefy the vapor at the critical temperature { Supercritical Region: P and T above the critical point
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Phase Diagrams P 1.0 atm solid liquid gas Critical point
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This note was uploaded on 10/23/2010 for the course CHEM 105A taught by Professor Bau during the Fall '04 term at USC.

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111609a - Heating Curve Heating Curve 100 g of ice is...

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