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A sample of a flourocarbon gas was allowed to expand to twice its volume. In this reversible, adiabatic expansion, the temperature dropped from 298.15 K to 248.44 K. Assuming the gas "acts ideally" during the expansion, estimate Cv for one mole and find the change in the molar internal energy after the expansion.
The density of liquid oxygen at its boiling point is 1.14kg/L , and its heat of vaporization is 213kJ/kg. How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized.
Compound (CH3)2CCHCH3 contains 85.63 g carbon per 100.0 g compound. Calculate the mass (g) of a sample of (CH3)2CCHCH3 if it contains 148.9 g of carbon.
Which of the following are molecular solids and which are covalent solids. SO2, I2, P4, S8, H2O, SiO2
Hydrogen is more electronegative and the shared electron pair is likely to be found closer to the hydrogen atom. Hydrogen is more electronegative and the shared electron pair is likely to be found closer to the chlorine atom.
What wavelength should the astrophysicist look for to detect a transition of an electron from the to the level
An electron traveling at 3.7 X 10^5 m/sec has an uncertainty in its velocity of 1.88 X 10^5 m/s. What is the uncertainty in its position?
what is the molarity of a solution prepared by adding 132 grams potassium chloride to enough water
A 125 g aluminum block at an initial temperature of 95°C is dropped into a styrofoam flask containing 150 mL of water at 20°C. What is the final temperature?
What is ?H for the process in this experiment. What is the molar enthalpy of solution for sodium hydroxide
What is the concentration of Ca2+ ions in a solution of CaI2 that has I- ion concentration of 0.520 M.
Which of the following compounds is quite insoluble in water, but would liberate a gas when treated with aqueous acetic acid
In relation to the previous question, diazonium salts couple with phenols in slightly alkaline solution. What effect does the pH of the solution have on the reactivity of the phenol?
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