CHEMISTRY
2nd Edition
ISBN: 9781593995782
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Chapter 5, Problem 47E
How many moles of isooctane must be burned to produce loo U of heat under standard state conditions?
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O States of Matter
Sketching a described thermodynamic change on a phase diagram
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The temperature on a sample of pure X held at 0.75 atm and -229. °C is increased until the sample sublimes. The temperature is then held constant and the
pressure is decreased by 0.50 atm. On the phase diagram below draw a path that shows this set of changes.
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LEKS: Using a phase diagram a X
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○ States of Matter
Using a phase diagram to find a phase transition temperature or pressure
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 1.1 atm.
pressure (atm)
16
08-
solid
liquid-
0
200
400
gas
600
temperature (K)
Note: your answer must be within 25 °C of the exact answer to be graded correct.
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O States of Matter
Using a phase diagram to find a phase transition temperature or pressure
se the phase diagram of Substance X below to find the boiling point of X when the pressure on the liquid is 1.6 atm.
pressure (atm)
32-
16-
solid
liquid
0.
gas
100
200
temperature (K)
300
Note: your answer must be within 12.5 °C of the exact answer to be graded correct.
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Chapter 5 Solutions
CHEMISTRY
Ch. 5 - A burning match and a bonfire may have the same...Ch. 5 - Prepare a table identifying several energy...Ch. 5 - Explain the difference between heat capacity and...Ch. 5 - Calculate the heat capacity, in joules and in...Ch. 5 - Calculate the heat capacity, in joules and in...Ch. 5 - How much heat, in joules and in calories, must be...Ch. 5 - How much heat, in joules and in calories, is...Ch. 5 - How much would the temperature of 275 g of water...Ch. 5 - If 14.5 kJ of heat were added to 485 g of liquid...Ch. 5 - A piece of unknown substance weighs 44.7 g and...
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