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1. Identify the 7 different phase changes and give an example for each?
2. Associated with phase changes are energy changes. Explain what is occurring and the energy changes for each phase transition.
3. Define what specific heat is.
4. Define what latent heat changes are give four different types found in phase changes.
5. What is a phase diagram?
6. Explain the boundary lines, triple point, and critical point associated with a phase diagram.
7. What is the difference between a crystal and an amorphous solid?
What is the vapor pressure of a solution with a benzene to octane molar ratio of 2:1. (benzene= 280 mmHg ; octane= 400 mmHg)
How many milliliters of N2 (measured at 0.740 atm and 100. °C) could be formed if the following reaction occurs? 4NH3(g) + 3O2(g) 2N2(g) + 6H2O(g)
The percentage of an additive in gasoline was measured six times with the following results: 0.14, 0.15, 0.16, 0.17, 0.20, 0.11%. Find the average and RSD and 90% confidence intervals for the percentage of the additive.
When 19 mL of a solution containing .29 M Ca(OH)2 is diluted to 30 mL, a dilute solution is formed. What is the OH- concentration in 15 mL of the dilute solution
A spaceship's maneuvering engine burns hydrogen and oxygen. Hydrogen is to delivered to this engine at 1.1atm pressure and 1500l required for a planned maneuver. What pressure must the holding tank be charged with if its volume is 40l? assume the ..
the solubility of nitrogen n2 in blood at 37 degrees celsius and at partial pressure of 0.80 atm is 0.00056 moll.a
What happens when the following compound is heated with dil. NaOH - Cite an example of intramolecular Aldol Condensation
Which of the following aqueous solutions should demonstrate the most ideal behavior? A. 0.1 M K2SO4 B. 0.1 M CaCl2 C. 3.0 M LiF D. 0.1 M MgSO4 E. 0.1 M NaCl
Compute the pH concentrations of all species present (H2CO3, HCO3-, CO32-, H30+, AND OH-) in a 0.020 M carbonic acid solution.
We did an experiment to isolate acetylsalicyclic acid from aspirin using methanol. We crushed the aspirin tablet before the extraction began. Why were we instructed to crush the aspirin tablet before proceeding
Explain what is the entropy of a mixture made up of 2.4 moles of O2 as well as 9.2 moles of N2 at the same temperature and pressure? The absolute molar entropies of O2 and N2 are 205 J/K.mol as well as 192 J/K.mol respectively at 25 C
The equilibrium constant for the formation of Cu(CN)42- is 2.0 x 1030. Calculate the value of pCu2+, or -log[Cu2+], if we were to dissolve 2.90 g
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