Physical Universe
16th Edition
ISBN: 9780077862619
Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur
Publisher: Mcgraw-hill Education,
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Chapter 10, Problem 54E
To determine
The unknown substance that is formed in the reaction has to be identified and the equation for the process has to be written.
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The vapor pressure of Substance X is measured at several temperatures:
temperature
vapor pressure
-47. °C
0.0484 atm
-35. °C
0.131 atm
-23. °C
0.322 atm
Use this information to calculate the enthalpy of vaporization of X.
Round your answer to 2 significant digits. Be sure your answer contains a correct unit symbol.
x10
0.52 mol of argon gas is admitted to an evacuated 3.00 liter (3.00 × 10-3 m3) container at 20.0°C. The gas then undergoes an isobaric process to a temperature of 260°C. What is the final volume of the gas, in liters?
Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
What is the ΔS° for the reaction? Given are the S°, in J K-1 mol-1, of each substance in parentheses.
SiCl4 (g, 330.73) + 2 Mg (s, 32.68) → 2 MgCl2 (s, 89.62) + Si (s, 18.83)
-198.02 J/K
198.02 J/K
-254.96 J/K
254.96 J/K
Chapter 10 Solutions
Physical Universe
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